Teacher Incentives and Student Achievement: Evidence from New York City Public Schools. NBER Working Paper No. 16850

ERIC Educational Resources Information Center

Fryer, Roland G.

2011-01-01

Financial incentives for teachers to increase student performance is an increasingly popular education policy around the world. This paper describes a school-based randomized trial in over two-hundred New York City public schools designed to better understand the impact of teacher incentives on student achievement. I find no evidence that teacher…

The Gender Gap in Mathematics: Evidence from Low- and Middle-Income Countries. NBER Working Paper No. 18464

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Bharadwaj, Prashant; De Giorgi, Giacomo; Hansen, David; Neilson, Christopher

2012-01-01

We establish the presence of a gender gap in mathematics across many low- and middle-income countries using detailed, comparable test score data. Examining micro level data on school performance linked to household demographics we note that first, the gender gap appears to increase with age. Indeed, the gap nearly doubles when comparing 4th grade…

A Community College Instructor Like Me: Race and Ethnicity Interactions in the Classroom. NBER Working Paper No. 17381

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Fairlie, Robert; Hoffmann, Florian; Oreopoulos, Philip

2011-01-01

This paper uses detailed administrative data from one of the largest community colleges in the United States to quantify the extent to which academic performance depends on students being of similar race or ethnicity to their instructors. To address the concern of endogenous sorting, we use both student and classroom fixed effects and focus on…

When the Saints Come Marching In. Effects of Hurricanes Katrina and Rita on Student Evacuees. NBER Working Paper No. 14385

ERIC Educational Resources Information Center

Sacerdote, Bruce

2008-01-01

I examine academic performance and college going for public school students affected by Hurricanes Katrina and Rita. Students who are forced to switch schools due to the hurricanes experience sharp declines in test scores in the first year following the hurricane. However, by the second and third years after the disaster, Katrina evacuees…

From Natural Variation to Optimal Policy? The Lucas Critique Meets Peer Effects. NBER Working Paper No. 16865

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Carrell, Scott E.; Sacerdote, Bruce I.; West, James E.

2011-01-01

We take cohorts of entering freshmen at the United States Air Force Academy and assign half to peer groups with the goal of maximizing the academic performance of the lowest ability students. Our assignment algorithm uses peer effects estimates from the observational data. We find a negative and significant treatment effect for the students we…

Alcohol and Student Performance: Estimating the Effect of Legal Access. NBER Working Paper No. 17637

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Lindo, Jason M.; Swensen, Isaac D.; Waddell, Glen R.

2011-01-01

We consider the effect of legal access to alcohol on student achievement. We first estimate the effect using an RD design but argue that this approach is not well suited to the research question in our setting. Our preferred approach instead exploits the longitudinal nature of the data, identifying the effect by measuring the extent to which a…

The Impact of Athletic Performance on Alumni Giving: An Analysis of Micro Data. NBER Working Paper No. 13937

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Meer, Jonathan; Rosen, Harvey S.

2008-01-01

An ongoing controversy in the literature on the economics of higher education centers on whether the success of a school's athletic program affects alumni donations. This paper uses a unique data set to investigate this issue. The data contain detailed information about donations made by alumni of a selective research university as well as a…

Does Mentoring Reduce Turnover and Improve Skills of New Employees? Evidence from Teachers in New York City. NBER Working Paper No. 13868

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Rockoff, Jonah E.

2008-01-01

Mentoring has become an extremely popular policy for improving the retention and performance of new teachers, but we know little about its effects on teacher and student outcomes. I study the impact of mentoring in New York City, which adopted a nationally recognized mentoring program in 2004. I use detailed program data to examine the…

The American Family in Black and White: A Post-Racial Strategy for Improving Skills to Promote Equality. NBER Working Paper No. 16841

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Heckman, James J.

2011-01-01

In contemporary America, racial gaps in achievement are primarily due to gaps in skills. Skill gaps emerge early before children enter school. Families are major producers of those skills. Inequality in performance in school is strongly linked to inequality in family environments. Schools do little to reduce or enlarge the gaps in skills that are…

If You Build It Will They Come? Teacher Use of Student Performance Data on a Web-Based Tool. NBER Working Paper No. 17486

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Tyler, John H.

2011-01-01

The past decade has seen increased testing of students and the concomitant proliferation of computer-based systems to store, manage, analyze, and report the data that comes from these tests. The research to date on teacher use of these data has mostly been qualitative and has mostly focused on the conditions that are necessary (but not necessarily…

Does Economic Research in Education Work? For Which Studies?

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Makel, Matthew C.; Wai, Jonathan

2016-01-01

In their National Bureau of Economic Research (NBER) working paper, "Does Gifted Education Work? For Which Students?" Card and Giuliano (C & G) made an enormous splash in not just gifted education but also the world (e.g., "The Washington Post," "The Atlantic," Five Thirty Eight). In this commentary, we highlight…

Land Use Controls and the Provision of Education. NBER Working Paper No. 17730

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Hanushek, Eric A.; Yilmaz, Kuzey

2012-01-01

Considerable prior analysis has gone into the study of zoning restrictions on locational choice and on fiscal burdens. The prior work on zoning--particularly fiscal or exclusionary zoning--has provided both inconclusive theoretical results and quite inconsistent empirical support of the theory. More importantly, none of this work addresses…

New Evidence on Teacher Labor Supply. NBER Working Paper No. 16802

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Engel, Mimi; Jacob, Brian A.

2011-01-01

Recent evidence on the large variance in teacher effectiveness has spurred renewed interest in teacher labor market policies. A substantial body of prior research documents that more highly qualified teachers tend to work in more advantaged schools, although this literature cannot determine the relative importance of supply versus demand factors…

"Opt-Out" Rates at Motherhood across High-Education Career Paths: Selection versus Work Environment. NBER Working Paper No. 14717

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Herr, Jane Leber; Wolfram, Catherine

2009-01-01

This paper examines the propensity of highly educated women to exit the labor force at motherhood. We focus on systematic differences across women with various graduate degrees to analyze whether these speak to differences in the capacity to combine children with work over a variety of high-education career paths. Working with a sample of Harvard…

School-to-Career and Post-Secondary Education: Evidence from the Philadelphia Educational Longitudinal Study. NBER Working Paper No. 11260

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Furstenberg, Frank F., Jr.; Neumark, David

2005-01-01

We study a set of programs implemented in Philadelphia high schools that focus on boosting post-secondary enrollment. These programs are less career oriented than traditional school-to work programs, but are consistent with the broadening of the goals of school-to-work to emphasize post-secondary education. The Philadelphia Longitudinal…

Poverty Alleviation and Child Labor. NBER Working Paper No. 15345

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Edmonds, Eric V.; Schady, Norbert

2009-01-01

How important are subsistence concerns in a family's decision to send a child to work? We consider this question in Ecuador, where poor families are selected at random to receive a cash transfer that is equivalent to 7 percent of monthly expenditures. Winning the cash transfer lottery is associated with a decline in work for pay away from the…

Addressing the Needs of Under-Prepared Students in Higher Education: Does College Remediation Work? NBER Working Paper No. 11325

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Bettinger, Eric P.; Long, Bridget Terry

2005-01-01

Each year, thousands of students graduate high school academically unprepared for college. As a result, approximately one-third of entering postsecondary students require remedial or developmental work before entering college-level courses. However, little is known about the causal impact of remediation on student outcomes. At an annual cost of…

Non-Production Benefits of Education: Crime, Health, and Good Citizenship. NBER Working Paper No. 16722

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Lochner, Lance

2011-01-01

A growing body of work suggests that education offers a wide-range of benefits that extend beyond increases in labor market productivity. Improvements in education can lower crime, improve health, and increase voting and democratic participation. This chapter reviews recent developments on these "non-production" benefits of education with an…

Twins or Strangers? Differences and Similarities between Industrial and Academic Science. NBER Working Paper No. 16113

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Sauermann, Henry; Stephan, Paula E.

2010-01-01

Some scholars view academic and industrial science as qualitatively different knowledge production regimes. Others claim that the two sectors are increasingly similar. Large-scale empirical evidence regarding similarities and differences, however, has been missing. Drawing on prior work on the organization of science, we first develop a framework…

Peer Effects and Human Capital Accumulation: the Externalities of ADD. NBER Working Paper No. 14354

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Aizer, Anna

2008-01-01

Although recent work has shown that peers affect human capital accumulation, the mechanisms are not well understood. Knowing why high achieving peers matter, because of their innate ability, disciplined behavior or some other factor, has important implications for our understanding of the education production function and for how we organize…

A Professor Like Me: The Influence of Instructor Gender on College Achievement. NBER Working Paper No. 13182

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Hoffman, Florian; Oreopoulos, Philip

2007-01-01

Many wonder whether teacher gender plays an important role in higher education by influencing student achievement and subject interest. The data used in this paper helps identify average effects from male and female college students assigned to male or female teachers. In contrast to previous work at the primary and secondary school level, our…

Income Inequality, the Median Voter, and the Support for Public Education. NBER Working Paper No. 16097

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Corcoran, Sean; Evans, William N.

2010-01-01

Using a panel of U.S. school districts spanning 1970-2000, we examine the relationship between income inequality and fiscal support for public education. In contrast with recent theoretical and empirical work suggesting a negative relationship between inequality and public spending, we find results consistent with a median voter model, in which…

How Large Are Returns to Schooling? Hint: Money Isn't Everything. NBER Working Paper No. 15339

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Oreopoulos, Philip; Salvanes, Kjell G.

2009-01-01

This paper explores the many avenues by which schooling affects lifetime well-being. Experiences and skills acquired in school reverberate throughout life, not just through higher earnings. Schooling also affects the degree one enjoys work and the likelihood of being unemployed. It leads individuals to make better decisions about health, marriage,…

Does Generosity Beget Generosity? Alumni Giving and Undergraduate Financial Aid. NBER Working Paper No. 17861

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Meer, Jonathan; Rosen, Harvey S.

2012-01-01

We investigate how undergraduates' financial aid packages affect their subsequent donative behavior as alumni. The empirical work is based upon micro data on alumni giving at an anonymous research university. We focus on three types of financial aid, scholarships, loans, and campus jobs. A novel aspect of our modeling strategy is that, consistent…

General Education, Vocational Education, and Labor-Market Outcomes over the Life-Cycle. NBER Working Paper No. 17504

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Hanushek, Eric A.; Woessmann, Ludger; Zhang, Lei

2011-01-01

Policy debates about the balance of vocational and general education programs focus on the school-to-work transition. But with rapid technological change, gains in youth employment from vocational education may be offset by less adaptability and thus diminished employment later in life. To test our main hypothesis that any relative labor-market…

Life Expectancy and Human Capital Investments: Evidence from Maternal Mortality Declines. NBER Working Paper No. 13947

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Jayachandran, Seema; Lleras-Muney, Adriana

2008-01-01

Longer life expectancy should encourage human capital accumulation, since a longer time horizon increases the value of investments that pay out over time. Previous work has been unable to determine the empirical importance of this life-expectancy effect due to the difficulty of isolating it from other effects of health on education. We examine a…

Time for Children: Trends in the Employment Patterns of Parents, 1967-2009. NBER Working Paper No. 17135

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Fox, Liana E.; Han, Wen-Jui; Ruhm, Christopher; Waldfogel, Jane

2011-01-01

Utilizing data from the 1967-2009 years of the March Current Population Surveys, we examine two important resources for children's well-being: time and money. We document trends in parental employment, from the perspective of children, and show what underlies these trends. We find that increases in family work hours mainly reflect movements into…

Children's Schooling and Parents' Investment in Children: Evidence from the Head Start Impact Study. NBER Working Paper No. 17704

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Gelber, Alexander M.; Isen, Adam

2011-01-01

Parents may have important effects on their children, but little work in economics explores whether children's schooling opportunities crowd out or encourage parents' investment in children. We analyze data from the Head Start Impact Study, which granted randomly-chosen preschool-aged children the opportunity to attend Head Start. We find that…

The Impact of Child Care Subsidies on Child Well-Being: Evidence from Geographic Variation in the Distance to Social Service Agencies. NBER Working Paper No. 16250

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Herbst, Chris M.; Tekin, Erdal

2010-01-01

In recent years, child care subsidies have become an integral part of federal and state efforts to move economically disadvantaged parents from welfare to work. Although previous empirical studies consistently show that these employment-related subsidies raise work levels among this group, little is known about the impact of subsidy receipt on…

What Explains Trends in Labor Supply among U.S. Undergraduates, 1970-2009? NBER Working Paper No. 17744

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Scott-Clayton, Judith

2012-01-01

Recent cohorts of college enrollees are more likely to work, and work substantially more, than those of the past. October CPS data reveal that average labor supply among 18 to 22-year-old full-time undergraduates nearly doubled between 1970 and 2000, rising from 6 hours to 11 hours per week. In 2000 over half of these "traditional" college…

Risk and Returns to Education. NBER Working Paper No. 18300

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Brown, Jeffrey; Fang, Chichun; Gomes, Francisco

2012-01-01

We analyze the returns to education in a life-cycle framework that incorporates risk preferences, earnings volatility (including unemployment), and a progressive income tax and social insurance system. We show that such a framework significantly reduces the measured gains from education relative to simple present-value calculations, although the…

Immigration and Inequality. NBER Working Paper No. 14683

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Card, David

2009-01-01

Immigration is often viewed as a proximate cause of the rising wage gap between high- and low-skilled workers. Nevertheless, there is controversy over the appropriate framework for measuring he presumed effect, and over the magnitudes involved. This paper offers an overview and synthesis of existing knowledge on the relationship between…

Information Constraints and Financial Aid Policy. NBER Working Paper No. 17811

ERIC Educational Resources Information Center

Scott-Clayton, Judith

2012-01-01

One justification for public support of higher education is that prospective students, particularly those from underprivileged groups, lack complete information about the costs and benefits of a college degree. Beyond financial considerations, students may also lack information about what they need to do academically to prepare for and…

Explaining Charter School Effectiveness. NBER Working Paper No. 17332

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Angrist, Joshua D.; Pathak, Parag A.; Walters, Christopher R.

2011-01-01

Estimates using admissions lotteries suggest that urban charter schools boost student achievement, while charter schools in other settings do not. We explore student-level and school-level explanations for these differences using a large sample of Massachusetts charter schools. Our results show that urban charter schools boost achievement well…

Does Family Structure Affect Children's Educational Outcomes? NBER Working Paper Series.

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Pollak, Robert A.; Ginther, Donna K.

This paper examines correlations between children's educational outcomes and family structure. Although popular discussions focus on distinctions between two-parent and single-parent families, earlier research shows that outcomes for stepchildren are similar to outcomes for children in single-parent families, and earlier researchers suggested that…

Grade Non-Disclosure. NBER Working Paper No. 17465

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Gottlieb, Daniel; Smetters, Kent

2011-01-01

This paper documents and explains the existence of grade non-disclosure policies in Masters in Business Administration programs, why these policies are concentrated in highly-ranked programs, and why these policies are not prevalent in most other professional degree programs. Related policies, including honors and minimum grade requirements, are…

Civil War. NBER Working Paper No. 14801

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Blattman, Christopher; Miguel, Edward

2009-01-01

Most nations have experienced an internal armed conflict since 1960. The past decade has witnessed an explosion of research into the causes and consequences of civil wars, belatedly bringing the topic into the economics mainstream. This article critically reviews this interdisciplinary literature and charts productive paths forward. Formal theory…

Fraternity Membership & Frequent Drinking. NBER Working Paper No. 16291

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DeSimone, Jeffrey S.

2010-01-01

Reinforcing earlier findings from other data, college senior fraternity/sorority members are more likely to consume alcohol frequently. Large reductions in estimates upon controlling for time spent partying, and to a lesser extent cigarette use and intramural sports involvement, suggest considerable unobserved heterogeneity in the relationship.…

Education as Liberation? NBER Working Paper No. 16939

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Friedman, Willa; Kremer, Michael; Miguel, Edward; Thornton, Rebecca

2011-01-01

Less developed regions have experienced massive increases in both education and democracy over the past half century, and it is widely claimed that many recent democratic transitions have been propelled by increasingly educated youth populations. Scholars have also speculated about education's social and political impacts, variously arguing that…

Credit Constraints in Education. NBER Working Paper No. 17435

ERIC Educational Resources Information Center

Lochner, Lance; Monge-Naranjo, Alexander

2011-01-01

We review studies of the impact of credit constraints on the accumulation of human capital. Evidence suggests that credit constraints are increasingly important for schooling and other aspects of households' behavior. We highlight the importance of early childhood investments, since their response largely determines the impact of credit…

Education Policy and Intergenerational Transfers in Equilibrium. NBER Working Paper No. 18782

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Abbott, Brant; Gallipoli, Giovanni; Meghir, Costas; Violante, Giovanni L.

2013-01-01

This paper compares partial and general equilibrium effects of alternative financial aid policies intended to promote college participation. We build an overlapping generations life-cycle, heterogeneous-agent, incomplete-markets model with education, labor supply, and consumption/saving decisions. Altruistic parents make inter vivos transfers to…

Are There Civic Returns to Education? NBER Working Paper Series.

ERIC Educational Resources Information Center

Dee, Thomas S.

The hypothesized effects of educational attainment on adult civic engagement and attitudes provide some of the most important justifications for government intervention in the market for education. This study presents evidence on whether these externalities exist. It assesses and implements two strategies for identifying the effects of educational…

Experimental Evidence on the Effect of Childhood Investments on Postsecondary Attainment and Degree Completion. NBER Working Paper No. 17533

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Dynarski, Susan; Hyman, Joshua M.; Schanzenbach, Diane Whitmore

2011-01-01

This paper examines the effect of early childhood investments on college enrollment and degree completion. We use the random assignment in the Project STAR experiment to estimate the effect of smaller classes in primary school on college entry, college choice, and degree completion. We improve on existing work in this area with unusually detailed…

Getting beneath the Veil of Effective Schools: Evidence from New York City. NBER Working Paper No. 17632

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Dobbie, Will; Fryer, Roland G., Jr.

2011-01-01

Charter schools were developed, in part, to serve as an R&D engine for traditional public schools, resulting in a wide variety of school strategies and outcomes. In this paper, we collect unparalleled data on the inner-workings of 35 charter schools and correlate these data with credible estimates of each school's effectiveness. We find that…

Economic Opportunities and Gender Differences in Human Capital: Experimental Evidence for India. NBER Working Paper No. 16021

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Jensen, Robert T.

2010-01-01

Gender differences in health and education are a concern for a number of developing countries. While standard theory predicts human capital should respond to market returns, social norms (e.g., disapproval of women working outside the home) may weaken or even sever this link for girls. Though many studies have examined the link between women's…

Estimating the Return to College Selectivity over the Career Using Administrative Earnings Data. NBER Working Paper No. 17159

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Dale, Stacy; Krueger, Alan B.

2011-01-01

We estimate the monetary return to attending a highly selective college using the College and Beyond (C&B) Survey linked to Detailed Earnings Records from the Social Security Administration (SSA). This paper extends earlier work by Dale and Krueger (2002) that examined the relationship between the college that students attended in 1976 and the…

Incentives and Effort in the Public Sector: Have U.S. Education Reforms Increased Teachers' Work Hours? NBER Working Paper No. 11970

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Stoddard, Christiana; Kuhn, Peter

2006-01-01

Beyond some contracted minimum, salaried workers' hours are largely chosen at the worker's discretion and should respond to the strength of contract incentives. Accordingly, we consider the response of teacher hours to accountability and school choice laws introduced in U.S. public schools over the past two decades. Total weekly hours of full-time…

Does Practice-Based Teacher Preparation Increase Student Achievement? Early Evidence from the Boston Teacher Residency. NBER Working Paper No. 17646

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Papay, John P.; West, Martin R.; Fullerton, Jon B.; Kane, Thomas J.

2011-01-01

The Boston Teacher Residency is an innovative practice-based preparation program in which candidates work alongside a mentor teacher for a year before becoming a teacher of record in Boston Public Schools. We find that BTR graduates are more racially diverse than other BPS novices, more likely to teach math and science, and more likely to remain…

Did the Americanization Movement Succeed? An Evaluation of the Effect of English-Only and Compulsory Schools Laws on Immigrants' Education. NBER Working Paper No. 18302

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Lleras-Muney, Adriana; Shertzer, Allison

2012-01-01

In the early twentieth century, education legislation was often passed based on arguments that new laws were needed to force immigrants to learn English and "Americanize." We provide the first estimates of the effect of statutes requiring English as the language of instruction and compulsory schooling laws on the school enrollment, work, literacy…

The Effect of Child Health Insurance Access on Schooling: Evidence from Public Insurance Expansions. NBER Working Paper No. 20178

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Cohodes, Sarah; Kleiner, Samuel; Lovenheim, Michael F.; Grossman, Daniel

2014-01-01

Public health insurance programs comprise a large share of federal and state government expenditure, and these programs are due to be expanded as part of the 2010 Affordable Care Act. Despite a large literature on the effects of these programs on health care utilization and health outcomes, little prior work has examined the long-term effects of…

The Disappearing Gender Gap: The Impact of Divorce, Wages, and Preferences on Education Choices and Women's Work. NBER Working Paper No. 17508

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Fernandez, Raquel; Wong, Joyce Cheng

2011-01-01

Women born in 1935 went to college significantly less than their male counterparts and married women's labor force participation (LFP) averaged 40% between the ages of thirty and forty. The cohort born twenty years later behaved very differently. The education gender gap was eliminated and married women's LFP averaged 70% over the same ages. In…

Sadness, Suicidality and Grades. NBER Working Paper No. 16239

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DeSimone, Jeffrey S.

2010-01-01

This study examines the past year relationship between GPA and experiencing a combination of two primary depression symptoms, feeling sad and losing interest in usual activities for at least two consecutive weeks, among high school students during 2001-2009. The GPA loss associated with sadness, as defined above, falls from slightly less than a…

Improving Educational Outcomes for Poor Children. NBER Working Paper No. 14550

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Jacob, Brian; Ludwig, Jens

2008-01-01

This review paper, prepared for the forthcoming Russell Sage volume Changing Poverty, considers the ability of different education policies to improve the learning outcomes of low-income children in America. Disagreements on this question stem in part from different beliefs about the problems with our nation's public schools. In our view there…

Do Principals Fire the Worst Teachers? NBER Working Paper No. 15715

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Jacob, Brian A.

2010-01-01

This paper takes advantage of a unique policy change to examine how principals make decisions regarding teacher dismissal. In 2004, the Chicago Public Schools (CPS) and Chicago Teachers Union (CTU) signed a new collective bargaining agreement that gave principals the flexibility to dismiss probationary teachers for any reason and without the…

Effective Schools: Teacher Hiring, Assignment, Development, and Retention. NBER Working Paper No. 17177

ERIC Educational Resources Information Center

Loeb, Susanna; Kalogrides, Demetra; Beteille, Tara

2011-01-01

The literature on effective schools emphasizes the importance of a quality teaching force in improving educational outcomes for students. In this paper, we use value-added methods to examine the relationship between a school's effectiveness and the recruitment, assignment, development and retention of its teachers. We ask whether effective schools…

Measuring Discrimination in Education. NBER Working Paper No. 15057

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Hanna, Rema; Linden. Leigh

2009-01-01

In this paper, we illustrate a methodology to measure discrimination in educational contexts. In India, we ran an exam competition through which children compete for a large financial prize. We recruited teachers to grade the exams. We then randomly assigned child "characteristics" (age, gender, and caste) to the cover sheets of the…

Teachers and the Gender Gaps in Student Achievement. NBER Working Paper No. 11660

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Dee, Thomas S.

2005-01-01

In the United States, girls outperform boys in measures of reading achievement while generally underperforming in science and mathematics. One major class of explanations for these gaps involves the gender-based interactions between students and teachers (e.g., role-model and Pygmalion effects). However, the evidence on whether these interactions…

What Makes an Effective Teacher? Quasi-Experimental Evidence. NBER Working Paper No. 16885

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Lavy, Victor

2011-01-01

This paper measures empirically the relationship between classroom teaching practices and student achievements. Based on primary- and middle-school data from Israel, I find very strong evidence that two important elements of teaching practices cause student achievements to improve. In particular, classroom teaching that emphasizes the instilment…

Early Admissions at Selective Colleges. NBER Working Paper No. 14844

ERIC Educational Resources Information Center

Avery, Christopher; Levin, Jonathan D.

2009-01-01

Early admissions is widely used by selective colleges and universities. We identify some basic facts about early admissions policies, including the admissions advantage enjoyed by early applicants and patterns in application behavior, and propose a game-theoretic model that matches these facts. The key feature of the model is that colleges want to…

Financial Literacy, Financial Education and Economic Outcomes. NBER Working Paper No. 18412

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Hastings, Justine S.; Madrian, Brigitte C.; Skimmyhorn, William L.

2012-01-01

In this article we review the literature on financial literacy, financial education, and consumer financial outcomes. We consider how financial literacy is measured in the current literature, and examine how well the existing literature addresses whether financial education improves financial literacy or personal financial outcomes. We discuss the…

Menstruation and Education in Nepal. NBER Working Paper No. 14853

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Oster, Emily; Thornton, Rebecca

2009-01-01

This paper presents the results from a randomized evaluation that distributed menstrual cups (menstrual sanitary products) to adolescent girls in rural Nepal. Girls in the study were randomly allocated a menstrual cup for use during their monthly period and were followed for fifteen months to measure the effects of having modern sanitary products…

Financial Literacy, Schooling, and Wealth Accumulation. NBER Working Paper No. 16452

ERIC Educational Resources Information Center

Behrman, Jere R.; Mitchell, Olivia S.; Soo, Cindy; Bravo, David

2010-01-01

Financial literacy and schooling attainment have been linked to household wealth accumulation. Yet prior findings may be biased due to noisy measures of financial literacy and schooling, as well as unobserved factors such as ability, intelligence, and motivation that could enhance financial literacy and schooling but also directly affect wealth…

Economic Contextual Factors and Child Body Mass Index. NBER Working Paper No. 15046

ERIC Educational Resources Information Center

Powell, Lisa M.; Chaloupka, Frank J.

2009-01-01

This study examines the relationship between child weight and fast food and fruit and vegetable prices and the availability of fast food restaurants, full-service restaurants, supermarkets, grocery stores and convenience stores . We estimate cross-sectional and individual-level fixed effects (FE) models to account for unobserved individual-level…

Unpacking Neighborhood Influences on Education Outcomes: Setting the Stage for Future Research. NBER Working Paper No. 16055

ERIC Educational Resources Information Center

Harding, David J.; Gennetian, Lisa; Winship, Christopher; Sanbonmatsu, Lisa; Kling, Jeffrey R.

2010-01-01

We motivate future neighborhood research through a simple model that considers youth educational outcomes as a function of neighborhood context, neighborhood exposure, individual vulnerability to neighborhood effects, and non-neighborhood educational inputs--with a focus on effect heterogeneity. Research using this approach would require three…

Heaping-Induced Bias in Regression-Discontinuity Designs. NBER Working Paper No. 17408

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Barreca, Alan I.; Lindo, Jason M.; Waddell, Glen R.

2011-01-01

This study uses Monte Carlo simulations to demonstrate that regression-discontinuity designs arrive at biased estimates when attributes related to outcomes predict heaping in the running variable. After showing that our usual diagnostics are poorly suited to identifying this type of problem, we provide alternatives. We also demonstrate how the…

Medieval Universities, Legal Institutions, and the Commercial Revolution. NBER Working Paper No. 17979

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Cantoni, Davide; Yuchtman, Noam

2012-01-01

We present new data documenting medieval Europe's "Commercial Revolution'' using information on the establishment of markets in Germany. We use these data to test whether medieval universities played a causal role in expanding economic activity, examining the foundation of Germany's first universities after 1386 following the Papal Schism. We…

Family Bonding with Universities. NBER Working Paper No. 15493

ERIC Educational Resources Information Center

Meer, Jonathan; Rosen, Harvey S.

2009-01-01

One justification offered for legacy admissions policies at universities is that they bind entire families to the university. Proponents maintain that these policies have a number of benefits, including increased donations from members of these families. We use a rich set of data from an anonymous selective research institution to investigate…

The Impact of Education on Health Knowledge. NBER Working Paper No. 16422

ERIC Educational Resources Information Center

Altindag, Duha Tore; Cannonier, Colin; Mocan, Naci H.

2010-01-01

The theory on the demand for health suggests that schooling causes health because schooling increases the efficiency of health production. Alternatively, the allocative efficiency hypothesis argues that schooling alters the input mix chosen to produce health. This suggests that the more educated have more knowledge about the health production…

Causes and Consequences of Early Life Health. NBER Working Paper No. 15637

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Case, Anne; Paxson, Christina

2010-01-01

We examine the consequences of childhood health for economic and health outcomes in adulthood, using height as a marker of health in childhood. After reviewing previous evidence, we present a conceptual framework that highlights data limitations and methodological problems associated with the study of this topic. We present estimates of the…

The Economics of International Differences in Educational Achievement. NBER Working Paper No. 15949

ERIC Educational Resources Information Center

Hanushek, Eric A.; Woessmann, Ludger

2010-01-01

An emerging economic literature over the past decade has made use of international tests of educational achievement to analyze the determinants and impacts of cognitive skills. The cross-country comparative approach provides a number of unique advantages over national studies: It can exploit institutional variation that does not exist within…

Improving School Accountability Measures. NBER Working Paper Series.

ERIC Educational Resources Information Center

Kane, Thomas J.; Staiger, Douglas O.

A growing number of states are using annual school-level test scores as part of their school accountability systems. This paper highlights an under-appreciated weakness of that approach, the imprecision of school-level test score means, and proposes a method for discerning signal from noise in annual school report cards. Using methods developed in…

Recent Developments in Intergenerational Mobility. NBER Working Paper No. 15889

ERIC Educational Resources Information Center

Black, Sandra E.; Devereux, Paul J.

2010-01-01

Economists and social scientists have long been interested in intergenerational mobility, and documenting the persistence between parents and children's outcomes has been an active area of research. However, since Gary Solon's 1999 Chapter in the Handbook of Labor Economics, the literature has taken an interesting turn. In addition to focusing on…

Luddites and the Demographic Transition. NBER Working Paper No. 14484

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O'Rourke, Kevin H.; Rahman, Ahmed S.; Taylor, Alan M.

2008-01-01

Technological change was unskilled-labor-biased during the early Industrial Revolution, but is skill-biased today. This is not embedded in extant unified growth models. We develop a model which can endogenously account for these facts, where factor bias reflects profit-maximizing decisions by innovators. Endowments dictate that the early…

Investing in Our Young People. NBER Working Paper No. 16201

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Cunha, Flavio; Heckman, James J.

2010-01-01

This paper reviews the recent literature on the production of skills of young persons. The literature features the multiplicity of skills that explain success in a variety of life outcomes. Noncognitive skills play a fundamental role in successful lives. The dynamics of skill formation reveal the interplay of cognitive and noncognitive skills, and…

As Science Evolves, How Can Science Policy? NBER Working Paper No. 16002

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Jones, Benjamin

2010-01-01

Getting science policy right is a core objective of government that bears on scientific advance, economic growth, health, and longevity. Yet the process of science is changing. As science advances and knowledge accumulates, ensuing generations of innovators spend longer in training and become more narrowly expert, shifting key innovations (i)…

School Turnarounds: Evidence from the 2009 Stimulus. NBER Working Paper No. 17990

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Dee, Thomas

2012-01-01

The American Recovery and Reinvestment Act of 2009 (ARRA) targeted substantial School Improvement Grants (SIGs) to the nation's "persistently lowest achieving" public schools (i.e., up to $2 million per school annually over 3 years) but required schools accepting these awards to implement a federally prescribed school-reform model.…

Putting Tasks to the Test: Human Capital, Job Tasks and Wages. NBER Working Paper No. 15116

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Autor, David H.; Handel, Michael J.

2009-01-01

Employing original, representative survey data, we document that cognitive, interpersonal and physical job task demands can be measured with high validity using standard interview techniques. Job tasks vary substantially within and between occupations, are significantly related to workers' characteristics, and are robustly predictive of wage…

The GED. NBER Working Paper No. 16064

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Heckman, James J.; Humphries, John Eric; Mader, Nicholas S.

2010-01-01

The General Educational Development (GED) credential is issued on the basis of an eight hour subject-based test. The test claims to establish equivalence between dropouts and traditional high school graduates, opening the door to college and positions in the labor market. In 2008 alone, almost 500,000 dropouts passed the test, amounting to 12% of…

Binge Drinking and Risky Sex among College Students. NBER Working Paper No. 15953

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DeSimone, Jeffrey S.

2010-01-01

This study examines the relationship between binge drinking and sexual behavior in nationally representative data on age 18-24 four-year college students. For having sex, overall or without condoms, large and significant positive associations are eliminated upon holding constant proxies for time-invariant sexual activity and drinking preferences.…

Catholic Schools and Bad Behavior. NBER Working Paper.

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Mocan, H. Naci; Scafidi, Benjamin; Tekin, Erdal

This study used data from Wave 1 of the National Longitudinal Study of Adolescent Health to analyze the impact of Catholic school attendance on the likelihood of teens participating in 13 risky behaviors (e.g., using or selling drugs, committing property crime, having sex, engaging in gang-related fights, attempting suicide, and running away from…

On the Political Economy of Educational Vouchers. NBER Working Paper No. 17986

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Epple, Dennis N.; Romano, Richard

2012-01-01

Two significant challenges hamper analyses of collective choice of educational vouchers. One is the multi-dimensional choice set arising from the interdependence of the voucher, public education spending, and taxation. The other is that household preferences between public and private schooling vary with the policy chosen. Even absent a voucher,…

The Economics and Psychology of Inequality and Human Development. NBER Working Paper No. 14695

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Cunha, Flavio; Heckman, James J.

2009-01-01

Recent research on the economics of human development deepens understanding of the origins of inequality and excellence. It draws on and contributes to personality psychology and the psychology of human development. Inequalities in family environments and investments in children are substantial. They causally affect the development of…

Education Policy and Crime. NBER Working Paper No. 15894

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Lochner, Lance

2010-01-01

This paper discusses the relationship between education and crime from an economic perspective, developing a human capital-based model that sheds light on key ways in which early childhood programs and policies that encourage schooling may affect both juvenile and adult crime. The paper first discusses evidence on the effects of educational…

Competitive Effects of Means-Tested School Vouchers. NBER Working Paper No. 16056

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Figlio, David N.; Hart, Cassandra M. D.

2010-01-01

We study the effects of private school competition on public school students' test scores in the wake of Florida's Corporate Tax Credit Scholarship program, now known as the Florida Tax Credit Scholarship Program, which offered scholarships to eligible low-income students to attend private schools. Specifically, we examine whether students in…

Does Pollution Increase School Absences? NBER Working Paper No. 13252

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Currie, Janet; Hanushek, Eric; Kahn, E. Megan; Neidell, Matthew; Rivkin, Steven

2007-01-01

We examine the effect of air pollution on school absences using unique administrative data for elementary and middle school children in the 39 largest school districts in Texas. These data are merged with information from monitors maintained by the Environmental Protection Agency. To control for potentially confounding factors, we adopt a…

Revealing Failures in the History of School Finance. NBER Working Paper No. 15491

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Lindert, Peter H.

2009-01-01

This essay proposes a set of non-econometric tests using data on wage structure, school resource costs, public expenditures, taxes, and rates of return to explain anomalies in which richer political units deliver less education than poorer ones. Both the anomalies of education history, and its less surprising contrasts, fit broad patterns that can…

Why I Lost My Secretary: The Effect of Endowment Shocks on University Operations. NBER Working Paper No. 15861

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Brown, Jeffrey; Dimmock, Stephen G.; Kang, Jun-Koo; Weisbenner, Scott

2010-01-01

Over the past two decades, endowments have become an increasingly important component of the typical university's resource base. We examine how U.S. doctoral institutions' endowment payout policies and spending decisions are affected by financial market shocks to endowments. While most endowments have formal payout policies intended to smooth…

Improving the Targeting of Treatment: Evidence from College Remediation. NBER Working Paper No. 18457

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Scott-Clayton, Judith; Crosta, Peter M.; Belfield, Clive R.

2012-01-01

At an annual cost of roughly $7 billion nationally, remedial coursework is one of the single largest interventions intended to improve outcomes for underprepared college students. But like a costly medical treatment with non-trivial side effects, the value of remediation overall depends upon whether those most likely to benefit can be identified…

The Supply of and Demand for Charitable Donations to Higher Education. NBER Working Paper No. 18389

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Brown, Jeffrey R.; Dimmock, Stephen G.; Weisbenner, Scott

2012-01-01

Charitable donations are an important revenue source for many institutions of higher education. We explore how donations respond to economic and financial market shocks, accounting for both supply and demand channels through which these shocks operate. In panel data with fixed effects to control for unobservable differences across universities, we…

Ability-Grouping and Academic Inequality: Evidence from Rule-Based Student Assignments. NBER Working Paper No. 14911

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Jackson, C. Kirabo

2009-01-01

In Trinidad and Tobago students are assigned to secondary schools after fifth grade based on achievement tests, leading to large differences in the school environments to which students of differing initial levels of achievement are exposed. Using both a regression discontinuity design and rule-based instrumental variables to address…

Teaching Students and Teaching Each Other: The Importance of Peer Learning for Teachers. NBER Working Paper No. 15202

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Jackson, C. Kirabo; Bruegmann, Elias

2009-01-01

Using longitudinal elementary school teacher and student data, we document that students have larger test score gains when their teachers experience improvements in the observable characteristics of their colleagues. Using within-school and within-teacher variation, we further show that a teacher's students have larger achievement gains in math…

The Effect of Education on Religion: Evidence from Compulsory Schooling Laws. NBER Working Paper No. 16973

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Hungerman, Daniel M.

2011-01-01

For over a century, social scientists have debated how educational attainment impacts religious belief. In this paper, I use Canadian compulsory schooling laws to identify the relationship between completed schooling and later religiosity. I find that higher levels of education lead to lower levels of religious participation later in life. An…

Selection Bias in College Admissions Test Scores. NBER Working Paper No. 14265

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Clark, Melissa; Rothstein, Jesse; Schanzenbach, Diane Whitmore

2008-01-01

Data from college admissions tests can provide a valuable measure of student achievement, but the non-representativeness of test-takers is an important concern. We examine selectivity bias in both state-level and school-level SAT and ACT averages. The degree of selectivity may differ importantly across and within schools, and across and within…

Information Sharing from 9-1-1 Centers

DTIC Science & Technology

2014-09-01

Police Chief, 2014, http://www.policechiefmagazine.org/ magazine /index.cfm?fuseaction=display_arch&article_id=1199&issue _id=62007. 2 “9-1-1 History...Homeland Security Magazine ,51 discusses the pros and cons of using social media to 49 Jennifer E...Information Dilemmas in Biotechnology : Organizational Boundaries As Trust Production, NBER WorkingPaper No. 5199, National Bureau of Economic

Estimating Marginal Returns to Education. NBER Working Paper No. 16474

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Carneiro, Pedro; Heckman, James J.; Vytlacil, Edward J.

2010-01-01

This paper estimates the marginal returns to college for individuals induced to enroll in college by different marginal policy changes. The recent instrumental variables literature seeks to estimate this parameter, but in general it does so only under strong assumptions that are tested and found wanting. We show how to utilize economic theory and…

The Changing Selectivity of American Colleges. NBER Working Paper No. 15446

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Hoxby, Caroline M.

2009-01-01

This paper shows that although the top ten percent of colleges are substantially more selective now than they were 5 decades ago, most colleges are not more selective. Moreover, at least 50 percent of colleges are substantially less selective now than they were then. This paper demonstrates that competition for space--the number of students who…

Urban Inequality. NBER Working Paper No. 14419

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Glaeser, Edward L.; Resseger, Matthew G.; Tobio, Kristina

2008-01-01

What impact does inequality have on metropolitan areas? Crime rates are higher in places with more inequality, and people in unequal cities are more likely to say that they are unhappy. There is also a negative association between local inequality and the growth of both income and population, once we control for the initial distribution of skills.…

Regression Discontinuity Designs: A Guide to Practice. NBER Working Paper No. 13039

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Imbens, Guido; Lemieux, Thomas

2007-01-01

In Regression Discontinuity (RD) designs for evaluating causal effects of interventions, assignment to a treatment is determined at least partly by the value of an observed covariate lying on either side of a fixed threshold. These designs were first introduced in the evaluation literature by Thistlewaite and Campbell (1960). With the exception of…

Left behind By Design: Proficiency Counts and Test-Based Accountability. NBER Working Paper No. 13293

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Neal, Derek; Schanzenbach, Diane Whitmore

2007-01-01

Many test-based accountability systems, including the No Child Left Behind Act of 2001 (NCLB), place great weight on the numbers of students who score at or above specified proficiency levels in various subjects. Accountability systems based on these metrics often provide incentives for teachers and principals to target children near current…

How and Why do Teacher Credentials Matter for Student Achievement? NBER Working Paper No. 12828

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Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L.

2007-01-01

Education researchers and policy makers agree that teachers differ in terms of quality and that quality matters for student achievement. Despite prodigious amounts of research, however, debate still persists about the causal relationship between specific teacher credentials and student achievement. In this paper, we use a rich administrative data…

Affirmative Action in Law School Admissions: What Do Racial Preferences Do? NBER Working Paper No. 14276

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Rothstein, Jesse; Yoon, Albert H.

2008-01-01

The Supreme Court has held repeatedly that race-based preferences in public university admissions are constitutional. But debates over the wisdom of affirmative action continue. Opponents of these policies argue that preferences are detrimental to minority students--that by placing these students in environments that are too competitive,…

Does Sorting Students Improve Scores? An Analysis of Class Composition. NBER Working Paper No. 18848

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Collins, Courtney A.; Gan, Li

2013-01-01

This paper examines schools' decisions to sort students into different classes and how those sorting processes impact student achievement. There are two potential effects that result from schools creating homogeneous classes--a "tracking effect," which allows teachers to direct their focus to a more narrow range of students, and a peer…

Econometric Methods for Research in Education. NBER Working Paper No. 16003

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Meghir, Costas; Rivkin, Steven G.

2010-01-01

This paper reviews some of the econometric methods that have been used in the economics of education. The focus is on understanding how the assumptions made to justify and implement such methods relate to the underlying economic model and the interpretation of the results. We start by considering the estimation of the returns to education both…

The Knowledge Trap: Human Capital and Development Reconsidered. NBER Working Paper No. 14138

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Jones, Benjamin F.

2008-01-01

This paper presents a model where human capital differences--rather than technology differences--can explain several central phenomena in the world economy. The results follow from the educational choices of workers, who decide not just how long to train, but also how broadly. A "knowledge trap" occurs in economies where skilled workers favor…

To Segregate or to Integrate: Education Politics and Democracy. NBER Working Paper No. 13319

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de la Croix, David; Doepke, Matthias

2007-01-01

The governments of nearly all countries are major providers of primary and secondary education to their citizens. In some countries, however, public schools coexist with private schools, while in others the government is the sole provider of education. In this study, we ask why different societies make different choices regarding the mix of…

Does Inequality in Skills Explain Inequality of Earnings across Advanced Countries? NBER Working Paper Series.

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Devroye, Dan; Freeman, Richard

The question of whether inequality in skills explains inequality of earnings across advanced countries was examined through a review of data from the International Adult Literacy Survey (IALS), which examined the prose, document, and quantitative literacy skills of adults in 12 member countries of the Organisation for Economic Cooperation and…

Policies to Create and Destroy Human Capital in Europe. NBER Working Paper No. 15742

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Heckman, James J.; Jacobs, Bas

2010-01-01

Trends in skill bias and greater turbulence in modern labor markets put wages and employment prospects of unskilled workers under pressure. Weak incentives to utilize and maintain skills over the life-cycle become manifest with the ageing of the population. Policies to promote human capital formation reduce welfare state dependency among the…

Federal Life Sciences Funding and University R&D. NBER Working Paper No. 15146

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Blume-Kohout, Margaret E.; Kumar, Krishna B.; Sood, Neeraj

2009-01-01

This paper investigates the impact of federal extramural research funding on total expenditures for life sciences research and development (R&D) at U.S. universities, to determine whether federal R&D funding spurs funding from non-federal (private and state/local government) sources. We use a fixed effects instrumental variable approach…

School Finance Reform: Assessing General Equilibrium Effects. NBER Working Paper No. 13524

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Epple, Dennis N.; Ferreyra, Maria Marta

2007-01-01

In 1994 the state of Michigan implemented one of the most comprehensive school finance reforms undertaken to date in any of the states. Understanding the effects of the reform is thus of value in informing other potential reform initiatives. In addition, the reform and associated changes in the economic environment provide an opportunity to assess…

Maternal Labor Supply and Children's Cognitive Development. NBER Working Paper Series.

ERIC Educational Resources Information Center

Blau, Francine D.; Grossberg, Adam J.

This study used a sample of 3- and 4-year-old children of female respondents from the 1986 National Longitudinal Surveys Youth Cohort to analyze the relationship between maternal labor supply and children's cognitive development. Respondents were 21 to 29 years old in 1986. Thus, the sample consisted of children of relatively young mothers.…

Scientific Productivity and Academic Promotion: A Study on French and Italian Physicists. NBER Working Paper No. 16341

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Lissoni, Francesco; Mairesse, Jacques; Montobbio, Fabio; Pezzoni, Michele

2010-01-01

The paper examines the determinants of scientific productivity (number of articles and journals' impact factor) for a panel of about 3600 French and Italian academic physicists active in 2004-05. Endogeneity problems concerning promotion and productivity are addressed by specifying a generalized Tobit model, in which a selection probit equation…

Financial Aid Policy: Lessons from Research. NBER Working Paper No. 18710

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Dynarski, Susan; Scott-Clayton, Judith

2013-01-01

In the nearly fifty years since the adoption of the Higher Education Act of 1965, financial aid programs have grown in scale, expanded in scope, and multiplied in form. As a result, financial aid has become the norm among college enrollees. The increasing size and complexity of the nation's student aid system has generated questions about…

Educational Choices, Subjective Expectations, and Credit Constraints. NBER Working Paper No. 15087

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Attanasio, Orazio; Kaufmann, Katja

2009-01-01

In this paper we analyze the link between people's "subjective" expectations of returns to schooling and their decision to invest into schooling. We use data from a household survey on Mexican junior and senior high school graduates that elicits their own and their parents' beliefs about future earnings for different scenarios of…

High Birth Weight and Cognitive Outcomes. NBER Working Paper No. 14524

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Cesur, Resul; Rashad, Inas

2008-01-01

While the effects of low birth weight have long been explored, those of high birth weight have been essentially ignored. Economists have analyzed the negative effects that low birth weight might have on subsequent school outcomes, while taking into account unobserved characteristics that may be common to families with low birth weight babies and…

The Causes of Political Integration: An Application to School Districts. NBER Working Paper No. 12047

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Gordon, Nora; Knight, Brian

2006-01-01

This paper examines the forces behind political integration through the lens of school district consolidations, which reduced the number of school districts in the United States from around 130,000 in 1930 to under 15,000 at present. Despite this large observed decline, many districts resisted consolidation before ultimately merging and others…

Do High-School Teachers Really Matter? NBER Working Paper No. 17722

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Jackson, C. Kirabo

2012-01-01

Unlike in elementary schools, high school teacher effects may be confounded with unobserved track-level treatments (such as the AVID program) that are correlated with individual teachers. I present a strategy that exploits detailed course-taking information to credibly estimate the effects of 9th grade Algebra and English teachers on test scores.…

Explaining the Rise in Educational Gradients in Mortality. NBER Working Paper No. 15678

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Cutler, David M.; Lange, Fabian; Meara, Ellen; Richards, Seth; Ruhm, Christopher J.

2010-01-01

The long-standing inverse relationship between education and mortality strengthened substantially later in the 20th century. This paper examines the reasons for this increase. We show that behavioral risk factors are not of primary importance. Smoking has declined more for the better educated, but not enough to explain the trend. Obesity has risen…

The Impact of No Child Left Behind on Student Achievement. NBER Working Paper No. 15531

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Dee, Thomas; Jacob, Brian

2009-01-01

The No Child Left Behind (NCLB) Act compelled states to design school-accountability systems based on annual student assessments. The effect of this Federal legislation on the distribution of student achievement is a highly controversial but centrally important question. This study presents evidence on whether NCLB has influenced student…

The Relationship Between Neighborhood Quality and Obesity among Children. NBER Working Paper No. 14985

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Sen, Bisakha; Mennemeyer, Stephen; Gary, Lisa C.

2009-01-01

It has long been posited by scientists that we need to have a better understanding in the role that larger contextual factors -- like neighborhood quality and the built environment -- may have on the nation's obesity crisis. This paper explores whether maternal perceptions of neighborhood quality affect children's bodyweight outcomes, and whether…

Conceptual Revolutions in Twentieth-Century Art. NBER Working Paper No. 15073

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Galenson, David

2009-01-01

Art critics and scholars have acknowledged the breakdown of their explanations and narratives of contemporary art in the face of what they consider the incoherent era of "pluralism" or "postmodernism" that began in the late twentieth century. This failure is in fact a result of their inability to understand the nature of the development of…

Mechanisms and Impacts of Gender Peer Effects at School. NBER Working Paper No. 13292

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Lavy, Victor; Schlosser, Analia

2007-01-01

The consequences of gender social and learning interactions in the classroom are of interest to parents, policy makers, and researchers. However, little is known about gender peer effects in schools and their operational channels. In this paper, we estimate the effects of classroom gender composition on scholastic achievements of boys and girls in…

Internationalization of U.S. Doctorate Education. NBER Working Paper No. 14792

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Bound, John; Turner, Sarah; Walsh, Patrick

2009-01-01

The representation of a large number of students born outside the United States among the ranks of doctorate recipients from U.S. universities is one of the most significant transformations in U.S. graduate education and the international market for highly-trained workers in science and engineering in the last quarter century. Students from…

Of Mice and Academics: Examining the Effect of Openness on Innovation. NBER Working Paper No. 14819

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Murray, Fiona; Aghion, Philippe; Dewatripont, Mathias; Kolev, Julian; Stern, Scott

2009-01-01

Scientific freedom and openness are hallmarks of academia: relative to their counterparts in industry, academics maintain discretion over their research agenda and allow others to build on their discoveries. This paper examines the relationship between openness and freedom, building on recent models emphasizing that, from an economic perspective,…

Financial Incentives and Student Achievement: Evidence from Randomized Trials. NBER Working Paper No. 15898

ERIC Educational Resources Information Center

Fryer, Roland G., Jr.

2010-01-01

This paper describes a series of school-based randomized trials in over 250 urban schools designed to test the impact of financial incentives on student achievement. In stark contrast to simple economic models, our results suggest that student incentives increase achievement when the rewards are given for inputs to the educational production…

University-Industry Spillovers, Government Funding, and Industrial Consulting. NBER Working Paper No. 15732

ERIC Educational Resources Information Center

Jensen, Richard; Thursby, Jerry; Thursby, Marie C.

2010-01-01

This paper presents a theoretical model of faculty consulting in the context of government and industry funding for research within the university, which then frames an empirical analysis of the funding and consulting of 458 individual faculty inventors from 8 major US universities. In the theory, firms realize that they free ride on government…

School Markets: The Impact of Information Approximating Schools' Effectiveness. NBER Working Paper No. 13676

ERIC Educational Resources Information Center

Mizala, Alejandra; Urquiola, Miguel

2007-01-01

The impact of competition on academic outcomes is likely to depend on whether parents are informed about schools' effectiveness or valued added (which may or may not be correlated with absolute measures of their quality), and on whether this information influences their school choices, thereby affecting schools' market outcomes. To explore these…

The Impact of Internet Subsidies in Public Schools. NBER Working Paper Series.

ERIC Educational Resources Information Center

Goolsbee, Austan; Guryan, Jonathan

As part of the Telecommunications Act of 1996, the U.S. government began subsidizing Internet and telecommunications access in classrooms and libraries through a tax on long-distance services (the E-Rate Program). This paper analyzes the impact of this program on public schools' technology adoption during 1996-2000, examining data on technology…

Obesity and Skill Attainment in Early Childhood. NBER Working Paper No. 13997

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Cawley, John; Spiess, C. Katharina

2008-01-01

This paper investigates the association between obesity and skill attainment in early childhood (aged 2-4 years). Data from the German Socio-Economic Panel Study are used to estimate models of developmental functioning in four critical areas (verbal skills, activities of daily living, motor skills, and social skills) as a function of various…

Preventing Youth Violence and Dropout: A Randomized Field Experiment. NBER Working Paper No. 19014

ERIC Educational Resources Information Center

Heller, Sara; Pollack, Harold A.; Ander, Roseanna; Ludwig, Jens

2013-01-01

Improving the long-term life outcomes of disadvantaged youth remains a top policy priority in the United States, although identifying successful interventions for adolescents--particularly males--has proven challenging. This paper reports results from a large randomized controlled trial of an intervention for disadvantaged male youth grades 7-10…

Beyond Signaling and Human Capital: Education and the Revelation of Ability. NBER Working Paper No. 13951

ERIC Educational Resources Information Center

Arcidiacono, Peter; Bayer, Patrick; Hizmo, Aurel

2008-01-01

In traditional signaling models, education provides a way for individuals to sort themselves by ability. Employers in turn use education to statistically discriminate, paying wages that reflect the average productivity of workers with the same given level of education. In this paper, we provide evidence that education (specifically, attending…

Vouchers for Private Schooling in Colombia: Evidence from a Randomized Natural Experiment. NBER Working Paper Series.

ERIC Educational Resources Information Center

Angrist, Joshua D.; Bettinger, Eric; Bloom, Erik; King, Elizabeth; Kremer, Michael

This paper examines the impact of Colombia's Programa de Ampliacion de Cobertura de la Educacion Secundaria (PACES), which provided over 125,000 poor students with private secondary school vouchers, many of which were awarded by lottery. Researchers surveyed lottery winners and losers to compare educational and other outcomes. Results showed no…

Aligning Student, Parent, and Teacher Incentives: Evidence from Houston Public Schools. NBER Working Paper No. 17752

ERIC Educational Resources Information Center

Fryer, Roland, Jr.

2012-01-01

This paper describes an experiment designed to investigate the impact of aligning student, parent, and teacher incentives on student achievement. On outcomes for which incentives were provided, there were large treatment effects. Students in treatment schools mastered more than one standard deviation more math objectives than control students, and…

Binge Drinking & Sex in High School. NBER Working Paper No. 16132

ERIC Educational Resources Information Center

DeSimone, Jeffrey S.

2010-01-01

This paper estimates the impact of binge drinking on sexual activity among a nationally representative set of high school students during the 1990s and 2000s. The main innovations are explicitly controlling for time-invariant preferences regarding sexual behavior and alcohol use, and eliminating non-drinkers from the comparison group. I find that…

How Teacher Turnover Harms Student Achievement. NBER Working Paper No. 17176

ERIC Educational Resources Information Center

Ronfeldt, Matthew; Lankford, Hamilton; Loeb, Susanna; Wyckoff, James

2011-01-01

Researchers and policymakers often assume that teacher turnover harms student achievement, but recent evidence calls into question this assumption. Using a unique identification strategy that employs grade-level turnover and two classes of fixed-effects models, this study estimates the effects of teacher turnover on over 600,000 New York City 4th…

The Effects of School Desegregation on Crime. NBER Working Paper No. 15380

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Weiner, David A.; Lutz, Byron F.; Ludwig, Jens

2009-01-01

One of the most striking features of crime in America is its disproportionate concentration in disadvantaged, racially segregated communities. In this paper we estimate the effects of court-ordered school desegregation on crime by exploiting plausibly random variation in the timing of when these orders go into effect across the set of large urban…

Public Knowledge, Private Knowledge: The Intellectual Capital of Entrepreneurs. NBER Working Paper No. 14797

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Link, Albert; Ruhm, Christopher

2009-01-01

This paper focuses on the innovative actions of entrepreneurs, namely their tendency to reveal the intellectual capital that results from their research efforts either in the form of public knowledge (publications) or private knowledge (patents). Using data collected by the National Research Council within the U.S. National Academies from their…

Effects of Welfare Reform on Vocational Education and Training. NBER Working Paper No. 16659

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Dave, Dhaval M.; Reichman, Nancy E.; Corman, Hope; Das, Dhiman

2011-01-01

Exploiting variation in welfare reform across states and over time and using relevant comparison groups, this study estimates the effects of welfare reform on an important source of human capital acquisition among women at risk for relying on welfare: vocational education and training. The results indicate that welfare reform reduced enrollment in…

A Roy Model of Social Interactions. NBER Working Paper No. 16880

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Cicala, Steve; Fryer, Roland G., Jr.; Spenkuch, Jorg L.

2011-01-01

We develop a Roy model of social interactions in which individuals sort into peer groups based on comparative advantage. Two key results emerge: First, when comparative advantage is the guiding principle of peer group organization, the effect of moving a student into an environment with higher-achieving peers depends on where in the ability…

Child Mental Health and Human Capital Accumulation: The Case of ADHD Revisited. NBER Working Paper No. 13474

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Fletcher, Jason; Wolfe, Barbara L.

2007-01-01

Recently, Currie and Stabile (2006) made a significant contribution to our understanding of the influence of ADHD symptoms on a variety of school outcomes including participation in special education, grade repetition and test scores. Their contributions include using a broad sample of children and estimating sibling fixed effects models to…

Child Health and Young Adult Outcomes. NBER Working Paper No. 14482

ERIC Educational Resources Information Center

Currie, Janet; Stabile, Mark; Manivong, Phongsack; Roos, Leslie L.

2008-01-01

Previous research has shown a strong connection between birth weight and future child outcomes. But this research has not asked how insults to child health after birth affect long-term outcomes, whether health at birth matters primarily because it predicts future health or through some other mechanism, or whether health insults matter more at some…

Do Community Colleges provide a Viable Pathway to a Baccalaureate Degree? NBER Working Paper No. 14367

ERIC Educational Resources Information Center

Long, Bridget Terry; Kurlaender, Michal

2008-01-01

Community colleges have become an important entryway for students intending to complete a baccalaureate degree. However, many question the viability of the transfer function and wonder whether students suffer a penalty for starting at a two-year institution. This paper examines how the outcomes of community college entrants compare to similar…

Household Location and Schools in Metropolitan Areas with Heterogeneous Suburbs; Tiebout, Alonso, and Government Policy. NBER Working Paper No. 15915

ERIC Educational Resources Information Center

Hanushek, Eric A.; Yilmaz, Kuzey

2010-01-01

An important element in considering school finance policies is that households are not passive but instead respond to policies. Household behavior is especially important in considering how households affect the spatial structure of metropolitan areas where different jurisdictions incorporate bundles of advantages and disadvantages. This paper…

Who Suffers during Recessions? NBER Working Paper No. 17951

ERIC Educational Resources Information Center

Hoynes, Hilary W.; Miller, Douglas L.; Schaller, Jessamyn

2012-01-01

In this paper we examine how business cycles affect labor market outcomes in the United States. We conduct a detailed analysis of how cycles affect outcomes differentially across persons of differing age, education, race, and gender, and we compare the cyclical sensitivity during the Great Recession to that in the early 1980s recession. We present…

Many Children Left Behind? Textbooks and Test Scores in Kenya. NBER Working Paper No. 13300

ERIC Educational Resources Information Center

Glewwe, Paul; Kremer, Michael; Moulin, Sylvie

2007-01-01

A randomized evaluation suggests that a program which provided official textbooks to randomly selected rural Kenyan primary schools did not increase test scores for the average student. In contrast, the previous literature suggests that textbook provision has a large impact on test scores. Disaggregating the results by students' initial academic…

The Draw of Home: How Teachers' Preferences for Proximity Disadvantage Urban Schools. NBER Working Paper.

ERIC Educational Resources Information Center

Boyd, Donald; Lankford, Hamilton; Loeb, Susanna; Wyckoff, James

This paper explores a little-understood aspect of labor markets, their spatial geography. Using data from New York State, it finds teacher labor markets to be geographically very small. Teachers express preferences to teach close to where they grew up, and, controlling for proximity, they prefer areas with characteristics similar to their…

Does Television Rot Your Brain? New Evidence from the Coleman Study. NBER Working Paper No. 12021

ERIC Educational Resources Information Center

Gentzkow, Matthew; Shapiro, Jesse M.

2006-01-01

We use heterogeneity in the timing of television's introduction to different local markets to identify the effect of preschool television exposure on standardized test scores later in life. Our preferred point estimate indicates that an additional year of preschool television exposure raises average test scores by about .02 standard deviations. We…

The Effect of Tuition Reimbursement on Turnover: A Case Study Analysis. NBER Working Paper No. 12975

ERIC Educational Resources Information Center

Flaherty, Colleen N.

2007-01-01

Tuition reimbursement programs provide financial assistance for direct costs of education and are a type of general skills training program commonly offered by employers in the United States. Standard human capital theory argues that investment in firm-specific skills reduces turnover, while investment in general skills training could result in…

The Nature of Credit Constraints and Human Capital. NBER Working Paper No. 13912

ERIC Educational Resources Information Center

Lochner, Lance J.; Monge-Naranjo, Alexander

2008-01-01

This paper studies the nature and impact of credit constraints in the market for human capital. We derive endogenous constraints from the design of government student loan programs and from the limited repayment incentives in private lending markets. These constraints imply cross-sectional patterns for schooling, ability, and family income that…

Accountability and Flexibility in Public Schools: Evidence from Boston's Charters and Pilots. NBER Working Paper No. 15549

ERIC Educational Resources Information Center

Abdulkadiroglu, Atila; Angrist, Joshua; Dynarski, Susan; Kane, Thomas J.; Pathak, Parag

2009-01-01

Charter schools are publicly funded but operate outside the regulatory framework and collective bargaining agreements characteristic of traditional public schools. In return for this freedom, charter schools are subject to heightened accountability. This paper estimates the impact of charter school attendance on student achievement using data from…

Studying the Child Obesity Epidemic With Natural Experiments. NBER Working Paper No. 14989

ERIC Educational Resources Information Center

Sandy, Robert; Liu, Gilbert; Ottensmann, John; Tchernis, Rusty; Wilson, Jeffrey; Ford, O.T.

2009-01-01

We utilize clinical records of successive visits by children to pediatric clinics in Indianapolis to estimate the effects on their body mass of environmental changes near their homes. We compare results for fixed-residence children with those for cross-sectional data. Our environmental factors are fast food restaurants, supermarkets, parks,…

Human Capital Development before Age Five. NBER Working Paper No. 15827

ERIC Educational Resources Information Center

Almond, Douglas; Currie, Janet

2010-01-01

This chapter seeks to set out what Economists have learned about the effects of early childhood influences on later life outcomes, and about ameliorating the effects of negative influences. We begin with a brief overview of the theory which illustrates that evidence of a causal relationship between a shock in early childhood and a future outcome…

Corrupting Learning: Evidence from Missing Federal Education Funds in Brazil. NBER Working Paper No. 18150

ERIC Educational Resources Information Center

Ferraz, Claudio; Finan, Frederico; Moreira, Diana B.

2012-01-01

This paper examines if money matters in education by looking at whether missing resources due to corruption affect student outcomes. We use data from the auditing of Brazil's local governments to construct objective measures of corruption involving educational block grants transferred from the central government to municipalities. Using variation…

Mismatch in Law School. NBER Working Paper No. 14275

ERIC Educational Resources Information Center

Rothstein, Jesse; Yoon, Albert

2008-01-01

An important criticism of race-based higher education admission preferences is that they may hurt minority students who attend more selective schools than they would in the absence of such preferences. We categorize the non-experimental research designs available for the study of so-called "mismatch" effects and evaluate the likely biases in each.…

Exam High Schools and Academic Achievement: Evidence from New York City. NBER Working Paper No. 17286

ERIC Educational Resources Information Center

Dobbie, Will; Fryer, Roland G., Jr.

2011-01-01

Publicly funded exam schools educate many of the world's most talented students. These schools typically contain higher achieving peers, more rigorous instruction, and additional resources compared to regular public schools. This paper uses a sharp discontinuity in the admissions process at three prominent exam schools in New York City to provide…

Education and the Age Profile of Literacy into Adulthood. NBER Working Paper No. 14073

ERIC Educational Resources Information Center

Cascio, Elizabeth; Clark, Damon; Gordon, Nora

2008-01-01

It is widely documented that U.S. students score below their OECD counterparts on international achievement tests, but it is less commonly known that ultimately, U.S. native adults catch up. In this paper, we explore institutional explanations for differences in the evolution of literacy over young adulthood across wealthy OECD countries. We use…

Students Choosing Colleges: Understanding the Matriculation Decision at a Highly Selective Private Institution. NBER Working Paper No. 15772

ERIC Educational Resources Information Center

Nurnberg, Peter; Schapiro, Morton; Zimmerman, David

2010-01-01

The college choice process can be reduced to three questions: (1) Where does a student apply?; (2) Which schools accept the students?; and (3) Which offer of admission does the student accept? This paper addresses question three. Specifically, we offer an econometric analysis of the matriculation decisions made by students accepted to Williams…

Breadth vs. Depth: The Timing of Specialization in Higher Education. NBER Working Paper No. 15943

ERIC Educational Resources Information Center

Malamud, Ofer

2010-01-01

This paper examines the tradeoff between early and late specialization in the context of higher education. While some educational systems require students to specialize early by choosing a major field of study prior to entering university, others allow students to postpone this choice. I develop a model in which individuals, by taking courses in…

Explaining Recent Trends in the U.S. Teen Birth Rate. NBER Working Paper No. 17964

ERIC Educational Resources Information Center

Kearney, Melissa Schettini; Levine, Phillip B.

2012-01-01

We investigate possible explanations for the large decline in U.S. teen childbearing that occurred in the twenty years following the 1991 peak. Our review of previous evidence and the results of new analyses presented here leads to the following main set of observations. First, the observed decline in teen childbearing is even more surprising…

First in the Class? Age and the Education Production Function. NBER Working Paper No. 13663

ERIC Educational Resources Information Center

Cascio, Elizabeth; Schanzenbach, Diane Whitmore

2007-01-01

Older children outperform younger children in a school-entry cohort well into their school careers. The existing literature has provided little insight into the causes of this phenomenon, leaving open the possibility that school-entry age is zero-sum game, where relatively young students lose what relatively old students gain. In this paper, we…

Adequate (or Adipose?) Yearly Progress: Assessing the Effect of "No Child Left Behind" on Children's Obesity. NBER Working Paper No. 16873

ERIC Educational Resources Information Center

Anderson, Patricia M.; Butcher, Kristin F.; Schanzenbach, Diane Whitmore

2011-01-01

This paper investigates how accountability pressures under No Child Left Behind (NCLB) may affect children's rate of overweight. Schools facing increased pressures to produce academic outcomes may reallocate their efforts in ways that have unintended consequences for children's health. For example, schools may cut back on recess and physical…

Direct and Indirect Effects of Teenage Body Weight on Adult Wages. NBER Working Paper No. 15027

ERIC Educational Resources Information Center

Han, Euna; Norton, Edward C.; Powell, Lisa M.

2009-01-01

Previous estimates on the association between body weight and wages in the literature have been contingent on education and occupation. This paper examines the direct effect of BMI on wages and the indirect effects operating through education and occupation choice, particularly for late-teen BMI and adult wages. Using the National Longitudinal…

Into College, out of Poverty? Policies to Increase the Postsecondary Attainment of the Poor. NBER Working Paper No. 15387

ERIC Educational Resources Information Center

Deming, David; Dynarski, Susan

2009-01-01

We review the experimental and quasi-experimental research evidence on the causal relationship between college costs and educational attainment, with a particular focus on low-income populations. The weight of the evidence indicates that reducing college costs can increase college entry and persistence. Simple and transparent programs appear to be…

Does Professor Quality Matter? Evidence from Random Assignment of Students to Professors. NBER Working Paper No. 14081

ERIC Educational Resources Information Center

Carrell, Scott E.; West, James E.

2008-01-01

It is difficult to measure teaching quality at the postsecondary level because students typically "self-select" their coursework and their professors. Despite this, student evaluations of professors are widely used in faculty promotion and tenure decisions. We exploit the random assignment of college students to professors in a large body of…

The Effect of Schooling and Ability on Achievement Test Scores. NBER Working Paper Series.

ERIC Educational Resources Information Center

Hansen, Karsten; Heckman, James J.; Mullen, Kathleen J.

This study developed two methods for estimating the effect of schooling on achievement test scores that control for the endogeneity of schooling by postulating that both schooling and test scores are generated by a common unobserved latent ability. The methods were applied to data on schooling and test scores. Estimates from the two methods are in…

Secrets of the Academy: The Drivers of University Endowment Success. NBER Working Paper No. 14341

ERIC Educational Resources Information Center

Lerner, Josh; Schoar, Antoinette; Wang, Jialan

2008-01-01

In recent years, university endowments have received much attention for their spectacular returns and innovative investment strategies, but few papers have examined trends in the endowment sector at large. In this paper, we analyze a sample of 1,300 educational endowments between 1992 and 2005. A striking phenomenon emerges of the "rich getting…

The Impact of Children's Public Health Insurance Expansions on Educational Outcomes. NBER Working Paper No. 14671

ERIC Educational Resources Information Center

Levine, Phillip B.; Schanzenbach, Diane Whitmore

2009-01-01

This paper examines the impact of public health insurance expansions through both Medicaid and SCHIP on children's educational outcomes, measured by 4th and 8th grade reading and math test scores, available from the National Assessment of Educational Progress (NAEP). We use a triple difference estimation strategy, taking advantage of the…

Katrina's Children: Evidence on the Structure of Peer Effects from Hurricane Evacuees. NBER Working Paper No. 15291

ERIC Educational Resources Information Center

Imberman, Scott; Kugler, Adriana D.; Sacerdote, Bruce

2009-01-01

In 2005, hurricanes Katrina and Rita forced many children to relocate across the Southeast. While schools quickly enrolled evacuees, receiving families worried about the impact of evacuees on non-evacuee students. Data from Houston and Louisiana show that, on average, the influx of evacuees moderately reduced elementary math test scores in…

Dressed for Success? The Effect of School Uniforms on Student Achievement and Behavior. NBER Working Paper No. 17337

ERIC Educational Resources Information Center

Gentile, Elisabetta; Imberman, Scott A.

2011-01-01

Uniform use in public schools is rising, but we know little about how they affect students. Using a unique dataset from a large urban school district in the southwest United States, we assess how uniforms affect behavior, achievement and other outcomes. Each school in the district determines adoption independently, providing variation over schools…

Student Aid Simplification: Looking Back and Looking Ahead. NBER Working Paper No. 17834

ERIC Educational Resources Information Center

Dynarski, Susan; Wiederspan, Mark

2012-01-01

Each year, fourteen million households seeking federal aid for college complete a detailed questionnaire about their finances, the Free Application for Federal Student Aid (FAFSA). At 116 questions, the FAFSA is almost as long as IRS Form 1040 and substantially longer than Forms 1040EZ and 1040A. Aid for college is intended to increase college…

Review of "The Effects of Test-Based Retention on Student Outcomes over Time: Regression Discontinuity Evidence from Florida"

ERIC Educational Resources Information Center

Robinson-Cimpian, Joseph P.

2015-01-01

A recent NBER [National Bureau of Economic Research] working paper examines Florida's policy to retain many low-scoring third graders. The report concludes that third-grade retention has immediate positive effects on the following year's test results, but these effects fade over the next six years, with no effect on graduation. The regression…

Health, Income, and the Timing of Education among Military Retirees. NBER Working Paper No. 15778

ERIC Educational Resources Information Center

Edwards, Ryan D.

2010-01-01

There is a large and robust correlation between adult health and education, part of which likely reflects causality running from education into health. Less clear is whether education obtained later in life is as valuable for health as are earlier years of schooling, or whether education raises health directly or through income or wealth. In this…

Education and the Prevalence of Pain. NBER Working Paper No. 14964

ERIC Educational Resources Information Center

Atlas, Steven J.; Skinner, Jonathan S.

2009-01-01

Many Americans report chronic and disabling pain, even in the absence of identifiable clinical disorders. We first examine the prevalence of pain in the older U.S. population using the Health and Retirement Study (HRS). Among 50-59 year females, for example, pain rates ranged from 26 percent for college graduates to 55 percent for those without a…

The Curious Dawn of American Public Schools. NBER Working Paper No. 13335

ERIC Educational Resources Information Center

Go, Sun; Lindert, Peter H.

2007-01-01

Three factors help to explain why school enrollments in the Northern United States were higher than those in the South and in most of Europe by 1850. One was affordability: the northern states had higher real incomes, cheaper teachers, and greater local tax support. The second was the greater autonomy of local governments. The third was the…

Education, Knowledge and the Evolution of Disparities in Health. NBER Working Paper No. 15840

ERIC Educational Resources Information Center

Aizer, Anna; Stroud, Laura

2010-01-01

We study how advances in scientific knowledge affect the evolution of disparities in health. Our focus is the 1964 Surgeon General Report on Smoking and Health--the first widely publicized report of the negative effects of smoking on health. Using an historical dataset that includes the smoking habits of pregnant women 1959-1966, we find that…

Do Better Schools Lead to More Growth? Cognitive Skills, Economic Outcomes, and Causation. NBER Working Paper No. 14633

ERIC Educational Resources Information Center

Hanushek, Eric A.; Woessmann, Ludger

2009-01-01

We provide evidence that the robust association between cognitive skills and economic growth reflects a causal effect of cognitive skills and supports the economic benefits of effective school policy. We develop a new common metric that allows tracking student achievement across countries, over time, and along the within-country distribution.…

Anti-Lemons: School Reputation and Educational Quality. NBER Working Paper No. 15112

ERIC Educational Resources Information Center

MacLeod, W. Bentley; Urquiola, Miguel

2009-01-01

Friedman (1962) argued that a free market in which schools compete based upon their reputation would lead to an efficient supply of educational services. This paper explores this issue by building a tractable model in which rational individuals go to school and accumulate skill valued in a perfectly competitive labor market. To this it adds one…

Estimating the Returns to Urban Boarding Schools: Evidence from SEED. NBER Working Paper No. 16746

ERIC Educational Resources Information Center

Curto, Vilsa E.; Fryer, Roland G., Jr.

2011-01-01

The SEED schools, which combine a "No Excuses'' charter model with a five-day-a-week boarding program, are America's only urban public boarding schools for the poor. We provide the first causal estimate of the impact of attending SEED schools on academic achievement, with the goal of understanding whether changing a student's environment through…

Under the Weather: Health, Schooling, and Economic Consequences of Early-Life Rainfall. NBER Working Paper No. 14031

ERIC Educational Resources Information Center

Maccini, Sharon L.; Yang, Dean

2008-01-01

How sensitive is long-run individual well-being to environmental conditions early in life? This paper examines the effect of weather conditions around the time of birth on the health, education, and socioeconomic outcomes of Indonesian adults born between 1953 and 1974. We link historical rainfall for each individual's birth-year and…

Variation in Educational Outcomes and Policies across Countries and of Schools within Countries. NBER Working Paper No. 16293

ERIC Educational Resources Information Center

Freeman, Richard B.; Machin, Stephen; Viarengo, Martina

2010-01-01

This study examines the variation in educational outcomes across and within countries using the TIMSS mathematics tests. It documents the wide cross-country variation in the level and dispersion of test scores. Countries with the highest test scores are those with the least inequality in scores, which suggests a "virtuous" equity-efficiency…

School Nutrition Programs and the Incidence of Childhood Obesity. NBER Working Paper No. 14297

ERIC Educational Resources Information Center

Millimet, Daniel L.; Tchernis, Rusty; Husain, Muna

2008-01-01

In light of the recent rise in childhood obesity, the School Breakfast Program (SBP) and National School Lunch Program (NSLP) have received renewed attention. Using panel data on over 13,500 primary school students, we assess the relationship between SBP and NSLP participation and (relatively) long-run measures of child weight. After documenting a…

School Competition and Efficiency with Publicly Funded Catholic Schools. NBER Working Paper No. 14176

ERIC Educational Resources Information Center

Card, David; Dooley, Martin; Payne, Abigail

2008-01-01

The province of Ontario has two publicly funded school systems: secular schools (known as public schools) that are open to all students, and separate schools that are open to children with Catholic backgrounds. The systems are administered independently and receive equal funding per student. In this paper we use detailed school and student-level…

Empowering Women through Education: Evidence from Sierra Leone. NBER Working Paper No. 18016

ERIC Educational Resources Information Center

Mocan, Naci H.; Cannonier, Colin

2012-01-01

We use data from Sierra Leone where a substantial education program provided increased access to education for primary-school age children but did not benefit children who were older. We exploit the variation in access to the program generated by date of birth and the variation in resources between various districts of the country. We find that…

Permanent Income and the Black-White Test Score Gap. NBER Working Paper No. 17610

ERIC Educational Resources Information Center

Rothstein, Jesse; Wozny, Nathan

2011-01-01

Analysts often examine the black-white test score gap conditional on family income. Typically only a current income measure is available. We argue that the gap conditional on permanent income is of greater interest, and we describe a method for identifying this gap using an auxiliary data set to estimate the relationship between current and…

Understanding the Black-White Test Score Gap in the First Two Years of School. NBER Working Paper Series.

ERIC Educational Resources Information Center

Fryer, Roland G., Jr.; Levitt, Steven D.

In previous research, a substantial gap in test scores between white and black students persists, even after controlling for a wide range of observable characteristics. Using a data set made available by the National Center for Education Statistics, the Early Childhood Longitudinal Study, this paper demonstrates that in stark contrast to earlier…

Class Size and Sorting in Market Equilibrium: Theory and Evidence. NBER Working Paper No. 13303

ERIC Educational Resources Information Center

Urquiola, Miguel; Verhoogen, Eric

2007-01-01

This paper examines how schools choose class size and how households sort in response to those choices. Focusing on the highly liberalized Chilean education market, we develop a model in which schools are heterogeneous in an underlying productivity parameter, class size is a component of school quality, households are heterogeneous in income and…

Are Teacher Absences Worth Worrying about in the U.S.? NBER Working Paper No. 13648

ERIC Educational Resources Information Center

Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L.

2007-01-01

Using detailed data from North Carolina, we examine the frequency, incidence, and consequences of teacher absences in public schools, as well as the impact of an absence disincentive policy. The incidence of teacher absences is regressive: schools in the poorest quartile averaged almost one extra sick day per teacher than schools in the highest…

The Black-White Test Score Gap through Third Grade. NBER Working Paper No. 11049

ERIC Educational Resources Information Center

Fryer, Roland G.; Levitt, Steven D.

2005-01-01

This paper describes basic facts regarding the black-white test score gap over the first four years of school. Black children enter school substantially behind their white counterparts in reading and math, but including a small number of covariates erases the gap. Over the first four years of school, however, blacks lose substantial ground…

Segregation and the Black-White Test Score Gap. NBER Working Paper No. 12988

ERIC Educational Resources Information Center

Vigdor, Jacob; Ludwig, Jens

2007-01-01

The mid-1980s witnessed breaks in two important trends related to race and schooling. School segregation, which had been declining, began a period of relative stasis. Black-white test score gaps, which had also been declining, also stagnated. The notion that these two phenomena may be related is also supported by basic cross-sectional evidence. We…

Estimating Treatment Effects from Contaminated Multi-Period Education Experiments: The Dynamic Impacts of Class Size Reductions. NBER Working Paper No. 15200

ERIC Educational Resources Information Center

Ding, Weili; Lehrer, Steven F.

2009-01-01

This paper introduces an empirical strategy to estimate dynamic treatment effects in randomized trials that provide treatment in multiple stages and in which various noncompliance problems arise such as attrition and selective transitions between treatment and control groups. Our approach is applied to the highly influential four year randomized…

The Impact of Physical Education on Obesity among Elementary School Children. NBER Working Paper No. 18341

ERIC Educational Resources Information Center

Cawley, John; Frisvold, David; Meyerhoefer, Chad

2012-01-01

In response to the dramatic rise in childhood obesity, the Centers for Disease Control (CDC) and other organizations have advocated increasing the time that elementary school children spend in physical education (PE) classes. However, little is known about the effect of PE on child weight. This paper measures that effect by instrumenting for child…

School Finance Reform and the Distribution of Student Achievement. NBER Working Paper No. 22011. Revised

ERIC Educational Resources Information Center

Lafortune, Julien; Rothstein, Jesse; Schanzenbach, Diane Whitmore

2016-01-01

We study the impact of post-1990 school finance reforms, during the so-called "adequacy" era, on absolute and relative spending and achievement in low-income school districts. Using an event study research design that exploits the apparent randomness of reform timing, we show that reforms lead to sharp, immediate, and sustained increases…

The American High School Graduation Rate: Trends and Levels. NBER Working Paper No. 13670

ERIC Educational Resources Information Center

Heckman, James J.; LaFontaine, Paul A.

2007-01-01

This paper uses multiple data sources and a unified methodology to estimate the trends and levels of the U.S. high school graduation rate. Correcting for important biases that plague previous calculations, we establish that (1) the true high school graduation rate is substantially lower than the official rate issued by the National Center for…

The Lengthening of Childhood: NBER Working Paper No. 14124

ERIC Educational Resources Information Center

Deming, David; Dynarski, Susan

2008-01-01

Forty years ago, 96% of six-year-old children were enrolled in first grade or above. As of 2005, the figure was just 84%. The school attendance rate of six-year-olds has not decreased; rather, they are increasingly likely to be enrolled in kindergarten rather than first grade. This paper documents this historical shift. We show that only about a…

The Long-Term Impacts of Teachers: Teacher Value-Added and Student Outcomes in Adulthood. NBER Working Paper No. 17699

ERIC Educational Resources Information Center

Chetty, Raj; Friedman, John N.; Rockoff, Jonah E.

2011-01-01

Are teachers' impacts on students' test scores ("value-added") a good measure of their quality? This question has sparked debate largely because of disagreement about (1) whether value-added (VA) provides unbiased estimates of teachers' impacts on student achievement and (2) whether high-VA teachers improve students' long-term outcomes.…

Remedying Education: Evidence from Two Randomized Experiments in India. NBER Working Paper No. 11904

ERIC Educational Resources Information Center

Banerjee, Abhijit; Cole, Shawn; Duflo, Esther; Linden, Leigh

2005-01-01

Many efforts to improve school quality by adding school resources have proven to be ineffective. This paper presents the results of two experiments conducted in Mumbai and Vadodara, India, designed to evaluate ways to improve the quality of education in urban slums. A remedial education program hired young women from the community to teach basic…

Building the Stock of College-Educated Labor. NBER Working Paper No. 11604

ERIC Educational Resources Information Center

Dynarski, Susan

2005-01-01

Half of college students drop out before completing a degree. These low rates of college completion among young people should be viewed in the context of slow future growth in the educated labor force, as the well-educated baby boomers retire and new workers are drawn from populations with historically low education levels. This paper establishes…

When Opportunity Knocks, Who Answers? New Evidence on College Achievement Awards. NBER Working Paper No. 16643

ERIC Educational Resources Information Center

Angrist, Joshua; Oreopoulos, Philip; Williams, Tyler

2010-01-01

We evaluate the effects of academic achievement awards for first and second-year college students on a Canadian commuter campus. The award scheme offered linear cash incentives for course grades above 70. Awards were paid every term. Program participants also had access to peer advising by upperclassmen. Program engagement appears to have been…

The Long-Run Impacts of Early Childhood Education: Evidence from a Failed Policy Experiment. NBER Working Paper No. 17085

ERIC Educational Resources Information Center

DeCicca, Philip; Smith, Justin D.

2011-01-01

We investigate short and long-term effects of early childhood education using variation created by a unique policy experiment in British Columbia, Canada. Our findings imply starting Kindergarten one year late substantially reduces the probability of repeating the third grade, and meaningfully increases in tenth grade math and reading scores.…

The Effect of Education Policy on Crime: An Intergenerational Perspective. NBER Working Paper No. 18145

ERIC Educational Resources Information Center

Meghir, Costas; Palme, Marten; Schnabel, Marieke

2012-01-01

The intergenerational transmission of human capital and the extent to which policy interventions can affect it is an issue of importance. Policies are often evaluated on either short term outcomes or just in terms of their effect on individuals directly targeted. If such policies shift outcomes across generations their benefits may be much larger…

The Value of School Facilities: Evidence from a Dynamic Regression Discontinuity Design. NBER Working Paper No. 14516

ERIC Educational Resources Information Center

Cellini, Stephanie Riegg; Ferreira, Fernando; Rothstein, Jesse

2008-01-01

This paper analyzes the impact of voter-approved school bond issues on school district balance sheets, local housing prices, and student achievement. We draw on the unique characteristics of California's system of school finance to obtain clean identification of bonds' causal effects, comparing districts in which school bond referenda passed or…

Sample Selectivity and the Validity of International Student Achievement Tests in Economic Research. NBER Working Paper No. 15867

ERIC Educational Resources Information Center

Hanushek, Eric A.; Woessmann, Ludger

2010-01-01

Critics of international student comparisons argue that results may be influenced by differences in the extent to which countries adequately sample their entire student populations. In this research note, we show that larger exclusion and non-response rates are related to better country average scores on international tests, as are larger…

Interracial Workplace Cooperation: Evidence from the NBA. NBER Working Paper No. 14749

ERIC Educational Resources Information Center

Price, Joseph; Lefgren, Lars; Tappen, Henry

2009-01-01

Using data from the National Basketball Association (NBA), we examine whether patterns of workplace cooperation occur disproportionately among workers of the same race. We find that, holding constant the composition of teammates on the floor, basketball players are no more likely to complete an assist to a player of the same race than a player of…

Increasing Time to Baccalaureate Degree in the United States. NBER Working Paper No. 15892

ERIC Educational Resources Information Center

Bound, John; Lovenheim, Michael F.; Turner, Sarah

2010-01-01

Time to completion of the baccalaureate degree has increased markedly in the United States over the last three decades, even as the wage premium for college graduates has continued to rise. Using data from the National Longitudinal Survey of the High School Class of 1972 and the National Educational Longitudinal Study of 1988, we show that the…

Inputs in the Production of Early Childhood Human Capital: Evidence from Head Start. NBER Working Paper No. 20639

ERIC Educational Resources Information Center

Walters, Christopher

2014-01-01

Studies of small-scale "model" early-childhood programs show that high-quality preschool can have transformative effects on human capital and economic outcomes. Evidence on the Head Start program is more mixed. Inputs and practices vary widely across Head Start centers, however, and little is known about variation in effectiveness within…

Under Pressure: Job Security, Resource Allocation, and Productivity in Schools under NCLB. NBER Working Paper No. 16745

ERIC Educational Resources Information Center

Reback, Randall; Rockoff, Jonah; Schwartz, Heather L.

2011-01-01

The most sweeping federal education law in decades, the No Child Left Behind (NCLB) Act, requires states to administer standardized exams and to punish schools that do not make Adequate Yearly Progress (AYP) for the fraction of students passing these exams. While the literature on school accountability is well-established, there exists no…

Estimating Marginal Returns to Higher Education in the UK. NBER Working Paper No. 13534

ERIC Educational Resources Information Center

Moffitt, Robert

2007-01-01

A long-standing issue in the literature on education is whether marginal returns to education fall as education rises. If the population differs in its rate of return, a closely related question is whether marginal returns to higher education fall as a greater fraction of the population enrolls. This paper proposes a nonparametric method of…

How Does Your Kindergarten Classroom Affect Your Earnings? Evidence from Project STAR. NBER Working Paper No. 16381

ERIC Educational Resources Information Center

Chetty, Raj; Friedman, John N.; Hilger, Nathaniel; Saez, Emmanuel; Schanzenbach, Diane Whitmore; Yagan, Danny

2010-01-01

In Project STAR, 11,571 students in Tennessee and their teachers were randomly assigned to different classrooms within their schools from kindergarten to third grade. This paper evaluates the long-term impacts of STAR using administrative records. We obtain five results. First, kindergarten test scores are highly correlated with outcomes such as…

Do Universities Generate Agglomeration Spillovers? Evidence from Endowment Value Shocks. NBER Working Paper No. 15299

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Kantor, Shawn; Whalley, Alexander

2009-01-01

In this paper we quantify the extent and magnitude of agglomeration spillovers from a formal institution whose sole mission is the creation and dissemination of knowledge--the research university. We use the fact that universities follow a fixed endowment spending policy based on the market value of their endowments to identify the causal effect…

Can Mentoring Help Female Assistant Professors? Interim Results from a Randomized Trial. NBER Working Paper No. 15707

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Blau, Francine D.; Currie, Janet M.; Croson, Rachel T. A.; Ginther, Donna K.

2010-01-01

While much has been written about the potential benefits of mentoring in academia, very little research documents its effectiveness. We present data from a randomized controlled trial of a mentoring program for female economists organized by the Committee for the Status of Women in the Economics Profession and sponsored by the National Science…

Opting For Families: Recent Trends in the Fertility of Highly Educated Women. NBER Working Paper No. 15074

ERIC Educational Resources Information Center

Shang, Qingyan; Weinberg, Bruce A.

2009-01-01

Observers have argued about whether highly-educated women are opting out of their careers and for families. If so, it is natural to expect fertility to increase and, insofar as children are associated with lower employment, further declines in employment. This paper provides a comprehensive study of recent trends in the fertility of…

Mother's Schooling, Fertility, and Children's Education: Evidence from a Natural Experiment. NBER Working Paper No. 16856

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Lavy, Victor; Zablotsky, Alexander

2011-01-01

This paper studies the effect of mothers' education on their fertility and their children's schooling. We base our evidence on a natural experiment that sharply reduced the cost of attending school and, as a consequence, significantly increased the education of affected cohorts. This natural experiment was the result of the de facto revocation in…

Development, Discouragement, or Diversion? New Evidence on the Effects of College Remediation. NBER Working Paper No. 18328

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Scott-Clayton, Judith; Rodriguez, Olga

2012-01-01

Half of all college students take at least one remedial course as part of their postsecondary experience, despite mixed evidence on the effectiveness of this intervention. Using a regression-discontinuity design with data from a large urban community college system, we extend the research on remediation in three ways. First, we articulate three…

Estimating the Effect of Leaders on Public Sector Productivity: The Case of School Principals. NBER Working Paper No. 17803

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Branch, Gregory F.; Hanushek, Eric A.; Rivkin, Steven G.

2012-01-01

Although much has been written about the importance of leadership in the determination of organizational success, there is little quantitative evidence due to the difficulty of separating the impact of leaders from other organizational components--particularly in the public sector. Schools provide an especially rich environment for studying the…

Socioeconomic Status and Health: Why Is the Relationship Stronger for Older Children? NBER Working Paper.

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Currie, Janet; Stabile, Mark

Case, Lubotsky, and Paxson (2001) show that the well-known relationship between socioeconomic status (SES) and health exists in childhood and grows more pronounced with age. However, in cross-sectional data, it is difficult to distinguish between two possible explanations. The first is that low-SES children are less able to respond to a given…

Heterogeneity in High Math Achievement across Schools: Evidence from the American Mathematics Competitions. NBER Working Paper No. 18277

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Ellison, Glenn; Swanson, Ashley

2012-01-01

This paper explores differences in the frequency with which students from different schools reach high levels of math achievement. Data from the American Mathematics Competitions is used to produce counts of high-scoring students from more than two thousand public, coeducational, non-magnet, non-charter U.S. high schools. High-achieving students…

The Unexpected Long-Run Impact of the Minimum Wage: An Educational Cascade. NBER Working Paper No. 16355

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Sutch, Richard

2010-01-01

Neglected, but significant, the long-run consequence of the minimum wage--which was made national policy in the United States in 1938--is its stimulation of capital deepening. This took two forms. First, the engineered shortage of low-skill, low-paying jobs induced teenagers to invest in additional human capital--primarily by extending their…

Home Computer Use and the Development of Human Capital. NBER Working Paper No. 15814

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Malamud, Ofer; Pop-Eleches, Cristian

2010-01-01

This paper uses a regression discontinuity design to estimate the effect of home computers on child and adolescent outcomes. We collected survey data from households who participated in a unique government program in Romania which allocated vouchers for the purchase of a home computer to low-income children based on a simple ranking of family…

The Elite Illusion: Achievement Effects at Boston and New York Exam Schools. NBER Working Paper No. 17264

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Abdulkadiroglu, Atila; Angrist, Joshua D.; Pathak, Parag A.

2011-01-01

Talented students compete fiercely for seats at Boston and New York exam schools. These schools are characterized by high levels of peer achievement and a demanding curriculum tailored to each district's highest achievers. While exam school students clearly do very well in school, the question of whether an exam school education adds value…

Complexity and Targeting in Federal Student Aid: A Quantitative Analysis. NBER Working Paper No. 13801

ERIC Educational Resources Information Center

Dynarski, Susan; Scott-Clayton, Judith E.

2008-01-01

A growing body of empirical evidence shows that some financial aid programs increase college enrollment. Puzzlingly, there is little compelling evidence that Pell Grants and Stafford Loans, the primary federal student aid programs, are effective in achieving this goal. In this paper, we provide an in-depth review of this evidence, which taken as a…

Do Expenditures Other Than Instructional Expenditures Affect Graduation and Persistence Rates in American Higher Education. NBER Working Paper No. 15216

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Webber, Douglas A.; Ehrenberg, Ronald G.

2009-01-01

During the last two decades, median instructional spending per full-time equivalent (FTE) student at American 4-year colleges and universities has grown at a slower rate than median spending per FTE student in a number of other expenditure categories including academic support, student services and research. Our paper uses institutional level…

Enhancing the Efficacy of Teacher Incentives through Loss Aversion: A Field Experiment. NBER Working Paper No. 18237

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Fryer, Roland G., Jr.; Levitt, Steven D.; List, John; Sadoff, Sally

2012-01-01

Domestic attempts to use financial incentives for teachers to increase student achievement have been ineffective. In this paper, we demonstrate that exploiting the power of loss aversion--teachers are paid in advance and asked to give back the money if their students do not improve sufficiently--increases math test scores between 0.201 (0.076) and…

What You Don't Look For, You Won't Find: A Commentary on Card and Giuliano's Examination of Universal Screening

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McBee, Matthew T.

2016-01-01

Card and Giuliano's National Bureau of Economic Research (NBER) working paper on universal screening is discussed. This commentary provides a brief summary and critique of the article, proposes an explanation of the results in light of the author's research on the role of nominations or screening tests in the gifted identification process, and…

School Governance, Teacher Incentives, and Pupil-Teacher Ratios: Experimental Evidence from Kenyan Primary Schools. NBER Working Paper No. 17939

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Duflo, Esther; Dupas, Pascaline; Kremer, Michael

2012-01-01

We examine a program that enabled Parent-Teacher Associations (PTAs) in Kenya to hire novice teachers on short-term contracts, reducing class sizes in grade one from 82 to 44 on average. PTA teachers earned approximately one-quarter as much as teachers operating under central government civil-service institutions but were absent one day per week…

Student Sorting and Bias in Value Added Estimation: Selection on Observables and Unobservables. NBER Working Paper No. 14666

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Rothstein, Jesse

2009-01-01

Non-random assignment of students to teachers can bias value added estimates of teachers' causal effects. Rothstein (2008a, b) shows that typical value added models indicate large counter-factual effects of 5th grade teachers on students' 4th grade learning, indicating that classroom assignments are far from random. This paper quantifies the…

Value-Added to What? How a Ceiling in the Testing Instrument Influences Value-Added Estimation. NBER Working Paper No. 14778

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Koedel, Cory; Betts, Julian

2009-01-01

Value-added measures of teacher quality may be sensitive to the quantitative properties of the student tests upon which they are based. This paper focuses on the sensitivity of value- added to test-score-ceiling effects. Test-score ceilings are increasingly common in testing instruments across the country as education policy continues to emphasize…

Small Family, Smart Family? Family Size and the IQ Scores of Young Men. NBER Working Paper No. 13336

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Black, Sandra E.; Devereux, Paul J.; Salvanes, Kjell G.

2007-01-01

How do families influence the ability of children? Cognitive skills have been shown to be a strong predictor of educational attainment and future labor market success; as a result, understanding the determinants of cognitive skills can lead to a better understanding of children's long run outcomes. This paper uses a large dataset on the male…

A New Data Set of Educational Attainment in the World, 1950-2010. NBER Working Paper No. 15902

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Barro, Robert J.; Lee, Jong-Wha

2010-01-01

Our panel data set on educational attainment has been updated for 146 countries from 1950 to 2010. The data are disaggregated by sex and by 5-year age intervals. We have improved the accuracy of estimation by using information from consistent census data, disaggregated by age group, along with new estimates of mortality rates and completion rates…

Modeling College Major Choices using Elicited Measures of Expectations and Counterfactuals. NBER Working Paper No. 15729

ERIC Educational Resources Information Center

Arcidiacono, Peter; Hotz, V. Joseph; Kang, Songman

2010-01-01

The choice of a college major plays a critical role in determining the future earnings of college graduates. Students make their college major decisions in part due to the future earnings streams associated with the different majors. We survey students about what their expected earnings would be both in the major they have chosen and in…

The Falling Time Cost of College: Evidence from Half a Century of Time Use Data. NBER Working Paper No. 15954

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Babcock, Philip S.; Marks, Mindy

2010-01-01

Using multiple datasets from different time periods, we document declines in academic time investment by full-time college students in the United States between 1961 and 2003. Full-time students allocated 40 hours per week toward class and studying in 1961, whereas by 2003 they were investing about 27 hours per week. Declines were extremely…

Under Pressure? The Effect of Peers on Outcomes of Young Adults. NBER Working Paper No. 16004

ERIC Educational Resources Information Center

Black, Sandra E.; Devereux, Paul J.; Salvanes, Kjell G.

2010-01-01

A variety of public campaigns, including the "Just Say No" campaign of the 1980s and 1990s that encouraged teenagers to "Just Say No to Drugs", are based on the premise that teenagers are very susceptible to peer influences. Despite this, very little is known about the effect of school peers on the long-run outcomes of…

Older and Wiser? Birth Order and IQ of Young Men. NBER Working Paper No. 13237

ERIC Educational Resources Information Center

Black, Sandra E.; Devereux, Paul J.; Salvanes, Kjell G.

2007-01-01

While recent research finds strong evidence that birth order affects children's outcomes such as education and earnings, the evidence on the effects of birth order on IQ is decidedly mixed. This paper uses a large dataset on the population of Norway that allows us to precisely measure birth order effects on IQ using both cross-sectional and…

The Benefits of College Athletic Success: An Application of the Propensity Score Design with Instrumental Variables. NBER Working Paper No. 18196

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Anderson, Michael L.

2012-01-01

Spending on big-time college athletics is often justified on the grounds that athletic success attracts students and raises donations. Testing this claim has proven difficult because success is not randomly assigned. We exploit data on bookmaker spreads to estimate the probability of winning each game for college football teams. We then condition…

Short-Run Effects of Parental Job Loss on Children's Academic Achievement. NBER Working Paper No. 15480

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Stevens, Ann Huff; Schaller, Jessamyn

2009-01-01

We study the relationship between parental job loss and children's academic achievement using data on job loss and grade retention from the 1996, 2001, and 2004 panels of the Survey of Income and Program Participation. We find that a parental job loss increases the probability of children's grade retention by 0.8 percentage points, or around 15…

How Much Is Too Much? The Influence of Preschool Centers on Children's Social and Cognitive Development. NBER Working Paper No. 11812

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Loeb, Susanna; Bridges, Margaret; Fuller, Bruce; Rumberger, Russ; Bassok, Daphna

2005-01-01

Previous research has demonstrated that attending center care is associated with cognitive benefits for young children. However, little is known about the ideal age for children to enter such care or the "right" amount of time, both weekly and yearly, for children to attend center programs. Using national data from the Early Childhood Longitudinal…

Heterogeneity in Human Capital Investments: High School Curriculum, College Major, and Careers. NBER Working Paper No. 17985

ERIC Educational Resources Information Center

Altonji, Joseph G.; Blom, Erica; Meghir, Costas

2012-01-01

Motivated by the large differences in labor market outcomes across college majors, we survey the literature on the demand for and return to high school and post-secondary education by field of study. We combine elements from several papers to provide a dynamic model of education and occupation choice that stresses the roles of specificity of human…

Is the GED an Effective Route to Postsecondary Education for School Dropouts? NBER Working Paper No. 13816

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Tyler, John H.; Lofstrom, Magnus

2008-01-01

We use data from the Texas Schools Microdata Panel (TSMP) to examine the extent to which dropouts use the GED as a route to post-secondary education. The paper develops a model pointing out the potential biases in estimating the effects of taking the "GED path" to postsecondary education. Lacking suitable instruments that would allow us…

Does Health Insurance Coverage Lead to Better Health and Educational Outcomes? Evidence from Rural China. NBER Working Paper No. 16417

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Chen, Yuyu; Jin, Ginger Zhe

2010-01-01

Many governments advocate nationwide health insurance coverage but the effects of such a program are less known in developing countries. We use part of the 2006 China Agricultural Census (CAC) to examine whether the recent health insurance coverage in rural China has affected children mortality, pregnancy mortality, and the school enrollment of…

Women's Education and Family Behavior: Trends in Marriage, Divorce and Fertility. NBER Working Paper No. 15725

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Isen, Adam; Stevenson, Betsey

2010-01-01

This paper examines how marital and fertility patterns have changed along racial and educational lines for men and women. Historically, women with more education have been the least likely to marry and have children, but this marriage gap has eroded as the returns to marriage have changed. Marriage and remarriage rates have risen for women with a…

The For-Profit Postsecondary School Sector: Nimble Critters or Agile Predators? NBER Working Paper No. 17710

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Deming, David J.; Goldin, Claudia; Katz, Lawrence F.

2011-01-01

Private for-profit institutions have been the fastest growing part of the U.S. higher education sector. For-profit enrollment increased from 0.2 percent to 9.1 percent of total enrollment in degree-granting schools from 1970 to 2009, and for-profit institutions account for the majority of enrollments in non-degree granting postsecondary schools.…

The Impact of College Education on Geographic Mobility: Identifying Education Using Multiple Components of Vietnam Draft Risk. NBER Working Paper No. 16463

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Malamud, Ofer; Wozniak, Abigail K.

2010-01-01

We examine whether higher education is a causal determinant of geographic mobility using variation in college attainment induced by draft-avoidance behavior during the Vietnam War. We use national and state-level induction risk to identify both educational attainment and veteran status among cohorts of affected men observed in the 1980 Census. Our…

Do Teenagers Respond to HIV Risk Information? Evidence from a Field Experiment in Kenya. NBER Working Paper No. 14707

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Dupas, Pascaline

2009-01-01

I use a randomized experiment to test whether information can change sexual behavior among teenagers in Kenya. Providing information on the relative risk of HIV infection by partner's age led to a 28% decrease in teen pregnancy, an objective proxy for the incidence of unprotected sex. Self-reported sexual behavior data suggests substitution away…

Small High Schools and Student Achievement: Lottery-Based Evidence from New York City. NBER Working Paper No. 19576

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Abdulkadiroglu, Atila; Hu, Weiwei; Pathak, Parag A.

2013-01-01

One of the most wideranging reforms in public education in the last decade has been the reorganization of large comprehensive high schools into small schools with roughly 100 students per grade. We use assignment lotteries embedded in New York City's high school match to estimate the effects of attendance at a new small high school on student…

The Returns to Education in China: Evidence from the 1986 Compulsory Education Law. NBER Working Paper No. 18189

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Fang, Hai; Eggleston, Karen N.; Rizzo, John A.; Rozelle, Scott; Zeckhauser, Richard J.

2012-01-01

As China transforms from a socialist planned economy to a market-oriented economy, its returns to education are expected to rise to meet those found in middle-income established market economies. This study employs a plausible instrument for education: the China Compulsory Education Law of 1986. We use differences among provinces in the dates of…

Chernobyl's Subclinical Legacy: Prenatal Exposure to Radioactive Fallout and School Outcomes in Sweden. NBER Working Paper No. 13347

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Almond, Douglas; Edlund, Lena; Palme, Marten

2007-01-01

Japanese atomic bomb survivors irradiated 8-25 weeks after ovulation subsequently suffered reduced IQ [Otake and Schull, 1998]. Whether these findings generalize to low doses (less than 10 mGy) has not been established. This paper exploits the natural experiment generated by the Chernobyl nuclear accident in April 1986, which caused a spike in…

Cheaper by the Dozen: Using Sibling Discounts at Catholic Schools to Estimate the Price Elasticity of Private School Attendance. NBER Working Paper No. 15461

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Dynarski, Susan; Gruber, Jonathan; Li, Danielle

2009-01-01

The effect of vouchers on sorting between private and public schools depends upon the price elasticity of demand for private schooling. Estimating this elasticity is empirically challenging because prices and quantities are jointly determined in the market for private schooling. We exploit a unique and previously undocumented source of variation…

Does Your Cohort Matter? Measuring Peer Effects in College Achievement. NBER Working Paper No. 14032

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Carrell, Scott E.; Fullerton, Richard L.; West, James E.

2008-01-01

To estimate peer effects in college achievement we exploit a unique dataset in which individuals have been exogenously assigned to peer groups of about 30 students with whom they are required to spend the majority of their time interacting. This feature enables us to estimate peer effects that are more comparable to changing the entire cohort of…

Learning about Academic Ability and the College Drop-Out Decision. NBER Working Paper No. 14810

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Stinebrickner, Todd R.; Stinebrickner, Ralph

2009-01-01

We use unique data to examine how college students from low income families form expectations about academic ability and to examine the role that learning about ability and a variety of other factors play in the college drop-out decision. From the standpoint of satisfying a central implication from the theory of drop-out, we find that…

Gains and Gaps: Changing Inequality in U.S. College Entry and Completion. NBER Working Paper No. 17633

ERIC Educational Resources Information Center

Bailey, Martha J.; Dynarski, Susan M.

2011-01-01

We describe changes over time in inequality in postsecondary education using nearly seventy years of data from the U.S. Census and the 1979 and 1997 National Longitudinal Surveys of Youth. We find growing gaps between children from high- and low-income families in college entry, persistence, and graduation. Rates of college completion increased by…

The Impact of Family Income on Child Achievement: Evidence from the Earned Income Tax Credit. NBER Working Paper No. 14599

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Dahl, Gordon; Lochner, Lance

2008-01-01

Past estimates of the effect of family income on child development have often been plagued by endogeneity and measurement error. In this paper, we use two simulated instrumental variables strategies to estimate the causal effect of income on children's math and reading achievement. Our identification derives from the large, non-linear changes in…

Donating the Voucher: An Alternative Tax Treatment of Private School Enrollment. NBER Working Paper No. 18525

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Samwick, Andrew A.

2012-01-01

Approximately 10 percent of school-age children in the United States are enrolled in private schools, relieving the financial burden on public school systems, and the taxpayers who support them, of the cost of their education. At present, the tax code does not allow families who provide this financial relief an income tax deduction, even though…

U.S. High School Graduation Rates: Patterns and Explanations. NBER Working Paper No. 18701

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Murnane, Richard J.

2013-01-01

I survey the evidence on patterns in U.S. high school graduation rates over the period 1970-2010 and report the results of new research conducted to fill in holes in the evidence. I begin by pointing out the strengths and limitations of existing data sources. I then describe six striking patterns in graduation rates. They include stagnation over…

Gainfully Employed? Assessing the Employment and Earnings of For-Profit College Students Using Administrative Data. NBER Working Paper No. 22287. Revised

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Cellini, Stephanie Riegg; Turner, Nicholas

2018-01-01

We draw on population-level administrative data from the U.S. Department of Education and the Internal Revenue Service to quantify the impact of for-profit college attendance on the employment and earnings of over one million students. Using a matched comparison group difference-in-differences design, we find that certificate-seeking students in…

Mother's Education and the Intergenerational Transmission of Human Capital: Evidence from College Openings and Longitudinal Data. NBER Working Paper Series.

ERIC Educational Resources Information Center

Currie, Janet; Moretti, Enrico

This study estimates the effect of maternal education on birth outcomes using data from the Vital Statistics Natality files for 1970 to 1999. It also assesses the importance of four potential channels through which maternal education may improve birth outcomes: use of prenatal care, smoking behavior, marriage, and fertility. In an effort to…

Is the U.S. Losing its Preeminence in Higher Education? NBER Working Paper No. 15233

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Adams, James D.

2009-01-01

The expansion of U.S. universities after World War II gained from the arrival of immigrant scientists and graduate students, the broadening of access to universities, and the development of military research and high technology industry. Since the 1980s, however, growth of scientific research in Europe and East Asia has exceeded that of the U.S.,…

Evidence on the Efficacy of School-Based Incentives for Healthy Living. NBER Working Paper No. 17478

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Cuffe, Harold E.; Harbaugh, William T.; Lindo, Jason M.; Musto, Giancarlo; Waddell, Glen R.

2011-01-01

We analyze the effects of a school-based incentive program on children's exercise habits. The program offers children an opportunity to win prizes if they walk or bike to school during prize periods. We use daily child-level data and individual fixed effects models to measure the impact of the prizes by comparing behavior during prize periods with…

The Importance of Segregation, Discrimination, Peer Dynamics, and Identity in Explaining Trends in the Racial Achievement Gap. NBER Working Paper No. 16257

ERIC Educational Resources Information Center

Fryer, Roland G., Jr.

2010-01-01

After decades of narrowing, the achievement gap between black and white school children widened in the 1990s--a period when the labor market rewards for education were increasing. This presents an important puzzle for economists. In this chapter, I investigate the extent to which economic models of segregation, information-based discrimination,…

The Effects of Childhood ADHD on Adult Labor Market Outcomes. NBER Working Paper No. 18689

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Fletcher, Jason

2013-01-01

While several types of mental illness, including substance abuse disorders, have been linked with poor labor market outcomes, no current research has been able to examine the effects of childhood ADHD. As ADHD has become one of the most prevalent childhood mental conditions, it is useful to understand the full set of consequences of the illness.…

An Empirical Analysis of the Gender Gap in Mathematics. NBER Working Paper No. 15430

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Fryer, Roland G., Jr.; Levitt, Steven D.

2009-01-01

We document and analyze the emergence of a substantial gender gap in mathematics in the early years of schooling using a large, recent, and nationally representative panel of children in the United States. There are no mean differences between boys and girls upon entry to school, but girls lose more than two-tenths of a standard deviation relative…

The Evolution of the Black-White Test Score Gap in Grades K-3: The Fragility of Results. NBER Working Paper No. 17960

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Bond, Timothy N.; Lang, Kevin

2012-01-01

Although both economists and psychometricians typically treat them as interval scales, test scores are reported using ordinal scales. Using the Early Childhood Longitudinal Study and the Children of the National Longitudinal Survey, we examine the effect of order-preserving scale transformations on the evolution of the black-white reading test…

Do Teacher Absences Impact Student Achievement? Longitudinal Evidence from One Urban School District. NBER Working Paper No. 13356

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Miller, Raegen T.; Murnane, Richard J.; Willett, John B.

2007-01-01

Rates of employee absences and the effects of absences on productivity are topics of conversation in many organizations in many countries. One reason is that high rates of employee absence may signal weak management and poor labor-management relations. A second reason is that reducing rates of employee absence may be an effective way to improve…

The Trouble with Boys: Social Influences and the Gender Gap in Disruptive Behavior. NBER Working Paper No. 17541

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Bertrand, Marianne; Pan, Jessica

2011-01-01

This paper explores the importance of the home and school environments in explaining the gender gap in disruptive behavior. We document large differences in the gender gap across key features of the home environment--boys do especially poorly in broken families. In contrast, we find little impact of the early school environment on non-cognitive…

Making College Worth It: A Review of Research on the Returns to Higher Education. NBER Working Paper 19053

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Oreopoulos, Philip; Petronijevic, Uros

2013-01-01

Recent stories of soaring student debt levels and under-placed college graduates have caused some to question whether a college education is still a sound investment. In this paper, we review the literature on the returns to higher education in an attempt to determine who benefits from college. Despite the tremendous heterogeneity across potential…

Estimation of Treatment Effects without an Exclusion Restriction: With an Application to the Analysis of the School Breakfast Program. NBER Working Paper No. 15539

ERIC Educational Resources Information Center

Millimet, Daniel L.; Tchernis, Rusty

2009-01-01

While the rise in childhood obesity is clear, the policy ramifications are not. School nutrition programs such as the School Breakfast Program (SBP) have come under much scrutiny. However, the lack of experimental evidence, combined with non-random selection into these programs, makes identification of the causal effects of such programs…

Why High-Order Polynomials Should Not Be Used in Regression Discontinuity Designs. NBER Working Paper No. 20405

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Gelman, Andrew; Imbens, Guido

2014-01-01

It is common in regression discontinuity analysis to control for high order (third, fourth, or higher) polynomials of the forcing variable. We argue that estimators for causal effects based on such methods can be misleading, and we recommend researchers do not use them, and instead use estimators based on local linear or quadratic polynomials or…

Home Computers and Child Outcomes: Short-Term Impacts from a Randomized Experiment in Peru. NBER Working Paper No. 18818

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Beuermann, Diether W.; Cristia, Julian P.; Cruz-Aguayo, Yyannu; Cueto, Santiago; Malamud, Ofer

2013-01-01

This paper presents results from a randomized control trial in which approximately 1,000 OLPC XO laptops were provided for home use to children attending primary schools in Lima, Peru. The intervention increased access and use of home computers, with some substitution away from computer use outside the home. Beneficiaries were more likely to…

Why Do Women Leave Science and Engineering? NBER Working Paper No. 15853

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Hunt, Jennifer

2010-01-01

I use the 1993 and 2003 National Surveys of College Graduates to examine the higher exit rate of women compared to men from science and engineering relative to other fields. I find that the higher relative exit rate is driven by engineering rather than science, and show that 60% of the gap can be explained by the relatively greater exit rate from…

The Effect of Maternal Depression and Substance Abuse on Child Human Capital Development. NBER Working Paper No. 15314

ERIC Educational Resources Information Center

Frank, Richard G.; Meara, Ellen

2009-01-01

Recent models of human capital formation represent a synthesis of the human capital approach and a life cycle view of human development that is grounded in neuroscience (Heckman 2007). This model of human development, the stability of the home and parental mental health can have notable impacts on skill development in children that may affect the…

College as Country Club: Do Colleges Cater to Students' Preferences for Consumption? NBER Working Paper No. 18745

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Jacob, Brian; McCall, Brian; Stange, Kevin M.

2013-01-01

This paper investigates whether demand-side market pressure explains colleges' decisions to provide consumption amenities to their students. We estimate a discrete choice model of college demand using micro data from the high school classes of 1992 and 2004, matched to extensive information on all four year colleges in the U.S. We find that most…

Thinking, Fast and Slow? Some Field Experiments to Reduce Crime and Dropout in Chicago. NBER Working Paper 21178

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Heller, Sara B.; Shah, Anuj K.; Guryan, Jonathan; Ludwig, Jens; Mullainathan, Sendhil; Pollack, Harold A.

2015-01-01

We present the results of three large-scale randomized controlled trials (RCTs) carried out in Chicago, testing interventions to reduce crime and dropout by changing the decision-making of economically disadvantaged youth. We study a program called Becoming a Man (BAM), developed by the non-profit Youth Guidance, in two RCTs implemented in 2009-10…

Bidding for Brains: Intellectual Property Rights and the International Migration of Knowledge Workers. NBER Working Paper No. 15486

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McAusland, Carol; Kuhn, Peter J.

2009-01-01

We introduce international mobility of knowledge workers into a model of Nash equilibrium IPR policy choice among countries. We show that governments have incentives to use IPRs in a bidding war for global talent, resulting in Nash equilibrium IPRs that can be too high, rather than too low, from a global welfare perspective. These incentives…

Is It Live or Is It Internet? Experimental Estimates of the Effects of Online Instruction on Student Learning. NBER Working Paper No. 16089

ERIC Educational Resources Information Center

Figlio, David N.; Rush, Mark; Yin, Lu

2010-01-01

This paper presents the first experimental evidence on the effects of live versus internet media of instruction. Students in a large introductory microeconomics course at a major research university were randomly assigned to live lectures versus watching these same lectures in an internet setting, where all other factors (e.g., instruction,…

The Labor Market Returns to a For-Profit College Education. NBER Working Paper No. 18343

ERIC Educational Resources Information Center

Cellini, Stephanie Riegg; Chaudhary, Latika

2012-01-01

A lengthy literature estimating the returns to education has largely ignored the for-profit sector. In this paper, we offer some of the first causal estimates of the earnings gains to for-profit colleges. We rely on restricted-use data from the 1997 National Longitudinal Survey of Youth (NLSY97) to implement an individual fixed effects estimation…

Sex and Science: How Professor Gender Perpetuates the Gender Gap. NBER Working Paper No. 14959

ERIC Educational Resources Information Center

Carrell, Scott E.; Page, Marianne E.; West, James E.

2009-01-01

Why aren't there more women in science? Female college students are currently 37 percent less likely than males to obtain a bachelor's degree in science, technology, engineering, and math (STEM), and comprise only 25 percent of the STEM workforce. This paper begins to shed light on this issue by exploiting a unique dataset of college students who…

Do Differences in School's Instruction Time Explain International Achievement Gaps in Math, Science, and Reading? Evidence from Developed and Developing Countries. NBER Working Paper No. 16227

ERIC Educational Resources Information Center

Lavy, Victor

2010-01-01

There are large differences across countries in instructional time in schooling institutions. Can these differences explain some of the differences across countries in pupils' achievements in different subjects? While research in recent years provides convincing evidence about the effect of several inputs in the education production function,…

The Effect of Housing Wealth on College Choice: Evidence from the Housing Boom. NBER Working Paper No. 18075

ERIC Educational Resources Information Center

Lovenheim, Michael F.; Reynolds, C. Lockwood

2012-01-01

The higher education system in the United States is characterized by a large degree of quality heterogeneity, and there is a growing literature suggesting students attending higher quality universities have better educational and labor market outcomes. In this paper, we use NLSY97 data combined with the difference in the timing and strength of the…

Do Child Tax Benefits Affect the Wellbeing of Children? Evidence from Canadian Child Benefit Expansions. NBER Working Paper No. 14624

ERIC Educational Resources Information Center

Milligan, Kevin; Stabile, Mark

2008-01-01

A vast literature has examined the impact of family income on the health and development outcomes of children. One channel through which increased income may operate is an improvement in a family's ability to provide food, shelter, clothing, books, and other expenditure-related inputs to a child's development. In addition to this channel, many…

The Role of Simplification and Information in College Decisions: Results from the H&R Block FAFSA Experiment. NBER Working Paper No. 15361

ERIC Educational Resources Information Center

Bettinger, Eric P.; Long, Bridget Terry; Oreopoulos, Philip; Sanbonmatsu, Lisa

2009-01-01

Growing concerns about low awareness and take-up rates for government support programs like college financial aid have spurred calls to simplify the application process and enhance visibility. This project examines the effects of two experimental treatments designed to test of the importance of simplification and information using a random…

Quantile Treatment Effects of College Quality on Earnings: Evidence from Administrative Data in Texas. NBER Working Paper No. 18068

ERIC Educational Resources Information Center

Andrews, Rodney J.; Li, Jing; Lovenheim, Michael F.

2012-01-01

This paper uses administrative data on schooling and earnings from Texas to estimate the effect of college quality on the distribution of earnings. We proxy college quality using the college sector from which students graduate and focus on identifying how graduating from UT-Austin, Texas A\\&M or a community college affects the distribution of…

Implications of Middle School Behavior Problems for High School Graduation and Employment Outcomes of Young Adults: Estimation of a Recursive Model. NBER Working Paper No. 16383

ERIC Educational Resources Information Center

Karakus, Mustafa C.; Salkever, David S.; Slade, Eric P.; Ialongo, Nicholas; Stuart, Elizabeth

2010-01-01

The potentially serious adverse impacts of behavior problems during adolescence on employment outcomes in adulthood provide a key economic rationale for early intervention programs. However, the extent to which lower educational attainment accounts for the total impact of adolescent behavior problems on later employment remains unclear. As an…

The Credibility Revolution in Empirical Economics: How Better Research Design is Taking the Con out of Econometrics. NBER Working Paper No. 15794

ERIC Educational Resources Information Center

Angrist, Joshua; Pischke, Jorn-Steffen

2010-01-01

This essay reviews progress in empirical economics since Leamer'rs (1983) critique. Leamer highlighted the benefits of sensitivity analysis, a procedure in which researchers show how their results change with changes in specification or functional form. Sensitivity analysis has had a salutary but not a revolutionary effect on econometric practice.…

Too Young to Leave the Nest: The Effects of School Starting Age. NBER Working Paper No. 13969

ERIC Educational Resources Information Center

Black, Sandra E.; Devereux, Paul J.; Salvanes, Kjell G.

2008-01-01

Does it matter when a child starts school? While the popular press seems to suggest it does, there is limited evidence of a long-run effect of school starting age on student outcomes. This paper uses data on the population of Norway to examine the role of school starting age on longer-run outcomes such as IQ scores at age 18, educational…

The Role of Teacher Quality in Retention and Hiring: Using Applications-to-Transfer to Uncover Preferences of Teachers and Schools. NBER Working Paper No. 15966

ERIC Educational Resources Information Center

Boyd, Donald; Lankford, Hamilton; Loeb, Susanna; Ronfeldt, Matthew; Wyckoff, James

2010-01-01

Many large urban school districts are rethinking their personnel management strategies, often giving increased control to schools in the hiring of teachers, reducing, for example, the importance of seniority. If school hiring authorities are able to make good decisions about whom to hire, these reforms have the potential to benefit schools and…

Single-Sex Schools, Student Achievement, and Course Selection: Evidence from Rule-Based Student Assignments in Trinidad and Tobago. NBER Working Paper No. 16817

ERIC Educational Resources Information Center

Jackson, C. Kirabo

2011-01-01

Existing studies on single-sex schooling suffer from biases due to student selection to schools and single-sex schools being better in unmeasured ways. In Trinidad and Tobago students are assigned to secondary schools based on an algorithm allowing one to address self-selection bias and cleanly estimate an upper-bound single-sex school effect. The…

Mexican Migration: Assessing Root Causes

DTIC Science & Technology

2007-06-01

surely broaden our understanding of the causes of Mexico–U.S. migration. One writer, Denise Dresser , does go into great detail about the political...change from a civil-authoritarian to a democratic regime.19 Dresser provides much insight into the working of the political transition in Mexico, but...www.nber.org/papers/w11428 (accessed January 25 2006), 9. 19 Denise Dresser , “Mexico: From PRI Predominance to Divided Democracy,” in Constructing

The Effects of "Girl-Friendly" Schools: Evidence from the BRIGHT School Construction Program in Burkina Faso. NBER Working Paper No. 18115

ERIC Educational Resources Information Center

Kazianga, Harounan; Levy, Dan; Linden, Leigh L.; Sloan, Matt

2012-01-01

We evaluate the causal effects of a program that constructed high quality "girl-friendly" primary schools in Burkina Faso, using a regression discontinuity design 2.5 years after the program started. We find that the program increased enrollment of all children between the ages of 5 and 12 by 20 percentage points and increased their test…

Are High Quality Schools Enough to Close the Achievement Gap? Evidence from a Social Experiment in Harlem. NBER Working Paper No. 15473

ERIC Educational Resources Information Center

Dobbie, Will; Fryer, Roland G., Jr.

2009-01-01

Harlem Children's Zone (HCZ), which combines community investments with reform minded charter schools, is one of the most ambitious social experiments to alleviate poverty of our time. We provide the first empirical test of the causal impact of HCZ on educational outcomes, with an eye toward informing the long-standing debate whether schools alone…

Externalities in the Classroom: How Children Exposed to Domestic Violence Affect Everyone's Kids. NBER Working Paper No. 14246

ERIC Educational Resources Information Center

Carrell, Scott E.; Hoekstra, Mark L.

2008-01-01

It is estimated that between ten and twenty percent of children in the United States are exposed to domestic violence annually. While much is known about the impact of domestic violence and other family problems on children within the home, little is known regarding the extent to which these problems spill over to children outside the family. The…

"Conditional Scholarships" for HIV/AIDS Health Workers: Educating and Retaining the Workforce to Provide Antiretroviral Treatment in Sub-Saharan Africa. NBER Working Paper No. 13396

ERIC Educational Resources Information Center

Barnighausen, Till; Bloom, David E.

2007-01-01

Without large increases in the number of health workers to treat HIV/AIDS (HAHW), most developing countries will be unable to achieve universal coverage with antiretroviral treatment (ART), leading to large numbers of potentially avoidable deaths among people living with HIV/AIDS. We use Markov Monte Carlo microsimulation to estimate the expected…

Taking the Easy Way Out: How the GED Testing Program Induces Students to Drop Out. NBER Working Paper No. 14044

ERIC Educational Resources Information Center

Heckman, James J.; LaFontaine, Paul A.; Rodriguez, Pedro L.

2008-01-01

We exploit an exogenous increase in General Educational Development (GED) testing requirements to determine whether raising the difficulty of the test causes students to finish high school rather than drop out and GED certify. We find that a six point decrease in GED pass rates induces a 1.3 point decline in overall dropout rates. The effect size…

How Responsive Is Investment in Schooling to Changes in Returns? Evidence from an Unusual Pay Reform in Israel's Kibbutzim. NBER Working Paper No. 17093

ERIC Educational Resources Information Center

Abramitzky, Ran; Lavy, Victor

2011-01-01

This paper uses a novel dataset to test the important theoretical prediction that the level of investment in schooling is increasing in the rate of return to education. We exploit a unique episode where different Israeli kibbutzim shifted from equal sharing to productivity-based wages in different years, resulting in sharp increases in the return…

The Returns to the Brain Drain and Brain Circulation in Sub-Saharan Africa: Some Computations Using Data from Ghana. NBER Working Paper No. 16813

ERIC Educational Resources Information Center

Nyarko, Yaw

2011-01-01

We look at the decision of the government or "central planner" in the allocation of scarce governmental resources for tertiary education, as well as that for the individual. We provide estimates of the net present values, or cost and benefits. These include costs of tertiary education; the benefits of improved skills of those who remain…

Quantity-Quality and the One Child Policy: The Only-Child Disadvantage in School Enrollment in Rural China. NBER Working Paper No. 14973

ERIC Educational Resources Information Center

Qian, Nancy

2009-01-01

Many believe that increasing the quantity of children will lead to a decrease in their quality. This paper exploits plausibly exogenous changes in family size caused by relaxations in China's One Child Policy to estimate the causal effect of family size on school enrollment of the first child. The results show that for one-child families, an…

The Effects of Student Coaching in College: An Evaluation of a Randomized Experiment in Student Mentoring. NBER Working Paper No. 16881

ERIC Educational Resources Information Center

Bettinger, Eric; Baker, Rachel

2011-01-01

College completion and college success often lag behind college attendance. One theory as to why students do not succeed in college is that they lack key information about how to be successful or fail to act on the information that they have. We present evidence from a randomized experiment which tests the effectiveness of individualized student…

Do College Instructors Matter? The Effects of Adjuncts and Graduate Assistants on Students' Interests and Success. NBER Working Paper No. 10370

ERIC Educational Resources Information Center

Bettinger, Eric; Long, Bridget Terry

2004-01-01

One of the most pronounced trends in higher education over the last decade has been the increased reliance on instructors outside of the traditional full-time, Ph.D.-trained model. Nearly 43 percent of all teaching faculty were part-time in 1998, and at selective colleges, graduate assistant instructors teach over 35 percent of introductory…

Putting the Co in Education: Timing, Reasons, and Consequences of College Coeducation from 1835 to the Present. NBER Working Paper No. 16281

ERIC Educational Resources Information Center

Goldin, Claudia; Katz, Lawrence F.

2010-01-01

The history of coeducation in U.S. higher education is explored through an analysis of a database containing information on all institutions offering four-year undergraduate degrees that operated in 1897, 1924, 1934, or 1980, most of which still exist today. These data reveal surprises about the timing of coeducation and the reasons for its…

The Quiet Revolution that Transformed Women's Employment, Education, and Family. NBER Working Paper No. 11953

ERIC Educational Resources Information Center

Goldin, Claudia

2006-01-01

The modern economic role of women emerged in four phases. The first three were evolutionary; the last was revolutionary. Phase I occurred from the late nineteenth century to the 1920s; Phase II was from 1930 to 1950; Phase III extended from 1950 to the late 1970s; and Phase IV, the "quiet revolution," began in the late 1970s and is still ongoing.…

Expanding School Resources and Increasing Time on Task: Effects of a Policy Experiment in Israel on Student Academic Achievement and Behavior. NBER Working Paper No. 18369

ERIC Educational Resources Information Center

Lavy, Victor

2012-01-01

In this paper, I examine how student academic achievements and behavior were affected by a school finance policy experiment undertaken in elementary schools in Israel. Begun in 2004, the funding formula changed from a budget set per class to a budget set per student, with more weight given to students from lower socioeconomic and lower educational…

Post-Secondary Attendance by Parental Income in the U.S. and Canada: What Role for Financial Aid Policy? NBER Working Paper No. 17218

ERIC Educational Resources Information Center

Belley, Philippe; Frenette, Marc; Lochner, Lance

2011-01-01

This paper examines the implications of tuition and need-based financial aid policies for family income--post-secondary (PS) attendance relationships. We first conduct a parallel empirical analysis of the effects of parental income on PS attendance for recent high school cohorts in both the U.S. and Canada using data from the 1997 Cohort of the…

Why Is the Teen Birth Rate in the United States so High and Why Does It Matter? NBER Working Paper No. 17965

ERIC Educational Resources Information Center

Kearney, Melissa Schettini; Levine, Phillip B.

2012-01-01

This paper examines two aspects of teen childbearing in the United States. First, it reviews and synthesizes the evidence on the reasons why teen birth rates are so uniquely high in the United States and especially in some states. Second, it considers why and how it matters. We argue that economists' typical explanations are unable to account for…

Birth Cohort and the Black-White Achievement Gap: The Roles of Access and Health Soon after Birth. NBER Working Paper No. 15078

ERIC Educational Resources Information Center

Chay, Kenneth Y.; Guryan, Jonathan; Bhashkar, Mazumder

2009-01-01

One literature documents a significant, black-white gap in average test scores, while another finds a substantial narrowing of the gap during the 1980's, and stagnation in convergence after. We use two data sources -- the Long Term Trends NAEP and AFQT scores for the universe of applicants to the U.S. military between 1976 and 1991 -- to show: 1)…

Be as Careful of the Company You Keep as of the Books You Read: Peer Effects in Education and on the Labor Market. NBER Working Paper No. 14948

ERIC Educational Resources Information Center

DeGiorgi, Giacomo; Pellizzari, Michele; Redaelli, Silvia

2009-01-01

In this paper we investigate whether peers' behavior influences the choice of college major, thus contributing to the mismatch of skills in the labor market. Using a newly constructed dataset, we are able to identify the endogenous effect of peers on such decisions through a novel identification strategy that solves the common econometric problems…

Educational "Goodwill": Measuring the Intangible Assets at Highly Selective Private Colleges and Universities. NBER Working Paper No. 17412

ERIC Educational Resources Information Center

Nurnberg, Peter; Schapiro, Morton; Zimmerman, David

2011-01-01

In this paper we utilize data on the head-to-head loss rate for students accepted at Williams College, but who opt to enroll elsewhere. For example, we employ data that measure the fraction of students admitted to Williams and to Amherst (or Harvard or Yale, etc.) but who opt to attend Amherst (or Harvard or Yale, etc.) instead of Williams. We…

School Libraries and Language Skills in Indian Primary Schools: A Randomized Evaluation of the Akshara Library Program. NBER Working Paper No. 18183

ERIC Educational Resources Information Center

Borkum, Evan; He, Fang; Linden, Leigh L.

2012-01-01

We conduct a randomized evaluation of a school library program on children's language skills. We find that the program had little impact on students' scores on a language test administered 16 months after implementation. The estimates are sufficiently precise to rule out effects larger than 0.13 and 0.11 standard deviations based on the 95 and 90…

Sixty Years after the Magic Carpet Ride: The Long-Run Effect of the Early Childhood Environment on Social and Economic Outcomes. NBER Working Paper No. 14884

ERIC Educational Resources Information Center

Gould, Eric D.; Lavy, Victor; Paserman, M. Daniele

2009-01-01

This paper estimates the effect of the childhood environment on a large array of social and economic outcomes lasting almost 60 years, for both the affected cohorts and for their children. To do this, we exploit a natural experiment provided by the 1949 Magic Carpet operation, where over 50,000 Yemenite immigrants were airlifted to Israel. The…

NBER working paper series: oil and the dollar. Working Paper No. 554

DOE Office of Scientific and Technical Information (OSTI.GOV)

Krugman, P.

1980-01-01

This paper develops a simple theoretical model of the effect of an oil price increase on exchange rates. The model shows that the direction of this effect depends on a comparison of the direct balance of payments burden of the higher oil price with the indirect balance of payments benefits of OPEC spending and investment. In the short run, what matters is whether the US share of world oil imports is more or less than its share of OPEC asset holdings; in the long run, whether its share of oil imports is more or less than its share of OPECmore » imports. Casual empiricism suggests that the initial effect and the long run effect will run in opposite directions; an oil price increase will initially lead to dollar appreciation, but eventually leads to dollar depreciation.« less

Labor Force Participation, Employment, and Earnings of Married Women: A Comparison of Military and Civilian Wives

DTIC Science & Technology

1990-07-01

Participation of Married Women: A Study of Labor Supply," in NBER, Aspects of Labor Economics , Princeton: Princeton University Press. 8. (1975). "The...Carolina. 11. Rosen, Sherwin (1977). "Human Capital: A Survey of Empirical Research," in Ehrenberg, R., ed., Research in Labor Economics , Vol. 1

Ultrasonic Nondestructive Evaluation of Damage in Continuous Fiber Composites

DTIC Science & Technology

1989-01-01

Security Classification) Ultrasonic Nondestructive Evalustion of Damage in Continuous Fiber Composites 12. PERSONAL AUTHOR(S) Vikram K. Kinra 13a...Attenuatiorn Composites , Damage / " UltrasonicNondestructive Evaluation. \\ ’k 19. ABSTRACT (Continue on reverse if necessary and identify by block n,,ber) A...n SIrIE -~ 2 4IiCUi’.ZIEfEi Ultrasonic nondestructive evaluation of fibre-reinforced composite materials - a review VIKRAM K KINRA and VINAY DAYAL

Interrelations of Fertility and Women's Labor Force Participation, With Particular Emphasis on the Effects of Education. Discussion Papers #388-77.

ERIC Educational Resources Information Center

Wolfe, Barbara

The effect of more education for women on their fertility behavior is examined in this paper through the use of data from the National Bureau of Economic Research/Thorndike-Hagen sample (NBERTH) and a comparable group from the National Longitudinal Survey. The NBER-TH data are longitudinal 25-year histories of 5,083 white males and their families.…

North Korean Paradoxes. Circumstances, Costs, and Consequences of Korean Unification

DTIC Science & Technology

2005-01-01

consequences of Korean unification / Charles Wolf, Jr., Kamil Akramov. p. cm. "MG-333." Includes bibliographical references. ISBN 0-8330-3762-5 (pbk. : alk ...Institute of Technology NBER National Bureau for Economic Research OECD Organization for Economic Cooperation and Develoment OSD Office of the Secretary of...opment ( OECD ) with a per capita income over $10,000 and the other a "lights-out" but nuclear-capable dynastic state-is the riddle; how to link economic

An Assessment of Potential Soviet Responses to Evolving Theater Nuclear Systems.

DTIC Science & Technology

1987-06-05

ORGANIZATION REPORT NUMIBER(S) 5 MONITORING ORGANIZAODN REPORT NUMNBER(S) 6a NAM OFPERFORMING ORGANIZATION fib OFFICE SYMBOL 7& NAME OF MONITORING... ORGANIZATION 6C. ADDRESS (Oty. State, and ZIP Cod.) 7b ADDRESSC,ty, State, and ZIP Cod.) Vicksburg, MS 39180-0631 Ba AMEOF UNDNG SPOSORNG8b OFFICE SYMBOL...9 PROCuREMENT INSR~UMENT IDENTiCICATtON N%BER ORGANIZATION (If appliabe USAm op fEgnes DN’o~)1 Bk. ADDRESS (City, State, and ZIP Code) 10 SOURCE OF

Bibliography on Cold Regions Science and Technology. Volume 40, Part 2, 1986

DTIC Science & Technology

1986-12-01

affecting teabird oc- currence in the Scotia and Weddell Seaa [1984, |> 119-121, eng] 40-22« Ice edges and seabird occurrence in Antarctica [1^36...catclunent[1989, p.Ul-147, eng] 40-2411 Brl>tM,E. Obacrvatioiu of plankton organianu obtained by bongo ueta during the Nove nber-December 1983 ice-edge...p.293-312, eng] 40-2510 Characteristics of marine icing in Canadian waten [1989, p.78-94, eng] 40-2498 Climatology of severe storms affecting

Generality in nanotechnologies and its relationship to economic performance

NASA Astrophysics Data System (ADS)

Gomez Baquero, Fernando

In the history if economic analysis there is perhaps no more important question than the one of how economic development is achieved. For more than a century, economists have explored the role of technology in economic growth but there is still much to be learned about the effect that technologies, in particular emerging ones, have on economic growth and productivity. The objective of this research is to understand the relationship between nanotechnologies and economic growth and productivity, using the theory of General Purpose Technology (GPT)-driven economic growth. To do so, the Generality Index (calculated from patent data) was used to understand the relative pervasiveness of nanotechnologies. The analysis of trends and patterns of Generality Index, using the largest group of patents since the publication of the NBER Patent Database, indicates that nanotechnologies possess a higher average Generality than other technological groups. Next, the relationship between the Generality Index and Total Factor Productivity (TFP) was studied using econometric analysis. Model estimates indicate that the variation in Generality for the group of nanotechnologies can explain a large proportion of the variation in TFP. However, the explanatory power of the entire set of patents (not just nanotechnologies) is larger and corresponds better to the expected theoretical models. Additionally, there is a negative short-run relationship between Generality and TFP, conflicting with part of the theoretical GPT-models. Finally, the relationship between the Generality of nanotechnologies and policy-driven investment events, such as R&D investments and grant awards, was studied using econometric methods. The statistical evidence suggests that NSF awards are related to technologies with higher Generality, while NIH awards and NNI investments are related to a lower average Generality. Overall, results of this research work indicate that the introduction of pervasive technologies into an economic system sets in motion an interesting series of events that can both increase and decrease productivity and therefore economic growth. The metrics and methods developed in this work emphasize the importance of developing and using new metrics for strategic decision making, both in the private sector and in the public sector.

Trading away what kind of jobs? Globalization, trade and tasks in the US economy

PubMed Central

Kemeny, Thomas; Rigby, David

2015-01-01

Economists and other social scientists are calling for a reassessment of the impact of international trade on labor markets in developed and developing countries. Classical models of globalization and trade, based upon the international exchange of finished goods, fail to capture the fragmentation of much commodity production and the geographical separation of individual production tasks. This fragmentation, captured in the growing volume of intra-industry trade, prompts investigation of the effects of trade within, rather than between, sectors of the economy. In this paper we examine the relationship between international trade and the task structure of US employment. We link disaggregate US trade data from 1972 to 2006, the NBER manufacturing database, the Decennial Census, and occupational and task data from the Dictionary of Occupational Titles. Within-industry shifts in task characteristics are linked to import competition and technological change. Our results suggest that trade has played a major role in the growth in relative demand for nonroutine tasks, particularly those requiring high levels of interpersonal interaction. PMID:26722134

Trading away what kind of jobs? Globalization, trade and tasks in the US economy.

PubMed

Kemeny, Thomas; Rigby, David

2012-04-01

Economists and other social scientists are calling for a reassessment of the impact of international trade on labor markets in developed and developing countries. Classical models of globalization and trade, based upon the international exchange of finished goods, fail to capture the fragmentation of much commodity production and the geographical separation of individual production tasks. This fragmentation, captured in the growing volume of intra-industry trade, prompts investigation of the effects of trade within, rather than between, sectors of the economy. In this paper we examine the relationship between international trade and the task structure of US employment. We link disaggregate US trade data from 1972 to 2006, the NBER manufacturing database, the Decennial Census, and occupational and task data from the Dictionary of Occupational Titles. Within-industry shifts in task characteristics are linked to import competition and technological change. Our results suggest that trade has played a major role in the growth in relative demand for nonroutine tasks, particularly those requiring high levels of interpersonal interaction.

Are stock prices too volatile to be justified by the dividend discount model?

NASA Astrophysics Data System (ADS)

Akdeniz, Levent; Salih, Aslıhan Altay; Ok, Süleyman Tuluğ

2007-03-01

This study investigates excess stock price volatility using the variance bound framework of LeRoy and Porter [The present-value relation: tests based on implied variance bounds, Econometrica 49 (1981) 555-574] and of Shiller [Do stock prices move too much to be justified by subsequent changes in dividends? Am. Econ. Rev. 71 (1981) 421-436.]. The conditional variance bound relationship is examined using cross-sectional data simulated from the general equilibrium asset pricing model of Brock [Asset prices in a production economy, in: J.J. McCall (Ed.), The Economics of Information and Uncertainty, University of Chicago Press, Chicago (for N.B.E.R.), 1982]. Results show that the conditional variance bounds hold, hence, our hypothesis of the validity of the dividend discount model cannot be rejected. Moreover, in our setting, markets are efficient and stock prices are neither affected by herd psychology nor by the outcome of noise trading by naive investors; thus, we are able to control for market efficiency. Consequently, we show that one cannot infer any conclusions about market efficiency from the unconditional variance bounds tests.

Economic Evaluation of Family Planning Interventions in Low and Middle Income Countries; A Systematic Review.

PubMed

Zakiyah, Neily; van Asselt, Antoinette D I; Roijmans, Frank; Postma, Maarten J

2016-01-01

A significant number of women in low and middle income countries (L-MICs) who need any family planning, experience a lack in access to modern effective methods. This study was conducted to review potential cost effectiveness of scaling up family planning interventions in these regions from the published literatures and assess their implication for policy and future research. A systematic review was performed in several electronic databases i.e Medline (Pubmed), Embase, Popline, The National Bureau of Economic Research (NBER), EBSCOHost, and The Cochrane Library. Articles reporting full economic evaluations of strategies to improve family planning interventions in one or more L-MICs, published between 1995 until 2015 were eligible for inclusion. Data was synthesized and analyzed using a narrative approach and the reporting quality of the included studies was assessed using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement. From 920 references screened, 9 studies were eligible for inclusion. Six references assessed cost effectiveness of improving family planning interventions in one or more L-MICs, while the rest assessed costs and consequences of integrating family planning and HIV services, concerning sub-Saharan Africa. Assembled evidence suggested that improving family planning interventions is cost effective in a variety of L-MICs as measured against accepted international cost effectiveness benchmarks. In areas with high HIV prevalence, integrating family planning and HIV services can be efficient and cost effective; however the evidence is only supported by a very limited number of studies. The major drivers of cost effectiveness were cost of increasing coverage, effectiveness of the interventions and country-specific factors. Improving family planning interventions in low and middle income countries appears to be cost-effective. Additional economic evaluation studies with improved reporting quality are necessary to generate further evidence on costs, cost-effectiveness, and affordability, and to support increased funding and investments in family planning programs.

Economic Evaluation of Family Planning Interventions in Low and Middle Income Countries; A Systematic Review

PubMed Central

Zakiyah, Neily; van Asselt, Antoinette D. I.; Roijmans, Frank; Postma, Maarten J.

2016-01-01

Background A significant number of women in low and middle income countries (L-MICs) who need any family planning, experience a lack in access to modern effective methods. This study was conducted to review potential cost effectiveness of scaling up family planning interventions in these regions from the published literatures and assess their implication for policy and future research. Study design A systematic review was performed in several electronic databases i.e Medline (Pubmed), Embase, Popline, The National Bureau of Economic Research (NBER), EBSCOHost, and The Cochrane Library. Articles reporting full economic evaluations of strategies to improve family planning interventions in one or more L-MICs, published between 1995 until 2015 were eligible for inclusion. Data was synthesized and analyzed using a narrative approach and the reporting quality of the included studies was assessed using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement. Results From 920 references screened, 9 studies were eligible for inclusion. Six references assessed cost effectiveness of improving family planning interventions in one or more L-MICs, while the rest assessed costs and consequences of integrating family planning and HIV services, concerning sub-Saharan Africa. Assembled evidence suggested that improving family planning interventions is cost effective in a variety of L-MICs as measured against accepted international cost effectiveness benchmarks. In areas with high HIV prevalence, integrating family planning and HIV services can be efficient and cost effective; however the evidence is only supported by a very limited number of studies. The major drivers of cost effectiveness were cost of increasing coverage, effectiveness of the interventions and country-specific factors. Conclusion Improving family planning interventions in low and middle income countries appears to be cost-effective. Additional economic evaluation studies with improved reporting quality are necessary to generate further evidence on costs, cost-effectiveness, and affordability, and to support increased funding and investments in family planning programs. PMID:27992552

Self-reported work ability and work performance in workers with chronic nonspecific musculoskeletal pain.

PubMed

de Vries, Haitze J; Reneman, Michiel F; Groothoff, Johan W; Geertzen, Jan H B; Brouwer, Sandra

2013-03-01

To assess self-reported work ability and work performance of workers who stay at work despite chronic nonspecific musculoskeletal pain (CMP), and to explore which variables were associated with these outcomes. In a cross-sectional study we assessed work ability (Work Ability Index, single item scale 0-10) and work performance (Health and Work Performance Questionnaire, scale 0-10) among 119 workers who continued work while having CMP. Scores of work ability and work performance were categorized into excellent (10), good (9), moderate (8) and poor (0-7). Hierarchical multiple regression and logistic regression analysis was used to analyze the relation of socio-demographic, pain-related, personal- and work-related variables with work ability and work performance. Mean work ability and work performance were 7.1 and 7.7 (poor to moderate). Hierarchical multiple regression analysis revealed that higher work ability scores were associated with lower age, better general health perception, and higher pain self-efficacy beliefs (R(2) = 42 %). Higher work performance was associated with lower age, higher pain self-efficacy beliefs, lower physical work demand category and part-time work (R(2) = 37 %). Logistic regression analysis revealed that work ability ≥8 was significantly explained by age (OR = 0.90), general health perception (OR = 1.04) and pain self-efficacy (OR = 1.15). Work performance ≥8 was explained by pain self-efficacy (OR = 1.11). Many workers with CMP who stay at work report poor to moderate work ability and work performance. Our findings suggest that a subgroup of workers with CMP can stay at work with high work ability and performance, especially when they have high beliefs of pain self-efficacy. Our results further show that not the pain itself, but personal and work-related factors relate to work ability and work performance.

28 CFR 545.22 - Institution work and performance pay committee.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Institution work and performance pay... INSTITUTIONAL MANAGEMENT WORK AND COMPENSATION Inmate Work and Performance Pay Program § 545.22 Institution work... Institution Inmate Work and Performance Pay Committee to administer the institution's work and performance pay...

Work-family conflicts and work performance.

PubMed

Roth, Lawrence; David, Emily M

2009-08-01

Prior research indicates that work-family conflict interferes with family far more than it interferes with work. Conservation of resources provides a possible explanation: when shifting resources from family is no longer sufficient to maintain satisfactory work performance, then workers must acquire additional resources or reduce investments in work. One source of such additional resources could be high performance peers in the work group. The performance of workers with resource-rich peers may be less adversely affected by work-family conflict. In this study, 136 employees of a wholesale distribution firm (61% women, 62% minority) working in groups of 7 to 11 in manual labor and low-level administrative jobs rated their own work-to-family conflict. Their supervisors rated workers' performance. Hierarchical regression analysis indicated that work-to-family conflict increasingly adversely affected job performance as work group performance decreased. Hence, work group performance may be an important moderator of the effects of work-family conflict.

Work performance decrements are associated with Australian working conditions, particularly the demand to work longer hours.

PubMed

Holden, Libby; Scuffham, Paul A; Hilton, Michael F; Vecchio, Nerina N; Whiteford, Harvey A

2010-03-01

To demonstrate the importance of including a range of working conditions in models exploring the association between health- and work-related performance. The Australian Work Outcomes Research Cost-benefit study cross-sectional screening data set was used to explore health-related absenteeism and work performance losses on a sample of approximately 78,000 working Australians, including available demographic and working condition factors. Data collected using the World Health Organization Health and Productivity Questionnaire were analyzed with negative binomial logistic regression and multinomial logistic regressions for absenteeism and work performance, respectively. Hours expected to work, annual wage, and job insecurity play a vital role in the association between health- and work-related performance for both work attendance and self-reported work performance. Australian working conditions are contributing to both absenteeism and low work performance, regardless of health status.

Emotions experienced in association with agricultural work performed in childhood--in opinions of adults.

PubMed

Lachowski, Stanisław; Lachowska, Bogusława

2014-01-01

Performance of work is related with experiencing various emotions, from positive - indicating full satisfaction with work, to negative - describing failures, and even harm caused by work. Such emotions are also experienced by children engaged in work on family farms. The objective of the study is the determination of emotions experienced in association with performing agricultural work in childhood, and indication of the factors conditioning the occurrence of positive and negative emotions. The study was conducted by the method of a diagnostic survey using a questionnaire technique, and covered a group of 482 adults from agricultural families. In childhood, positive emotions related with the performance of work are more often experienced than negative emotions. The occurrence of positive emotions is positively related with willingness to perform work activities, working time, respondent's age, age at which a child started to perform work, and age at which a child discontinued helping on a farm. The occurrence of negative emotions is positively related with unwillingness to perform work, performing work activities beyond the physical capabilities of a child, neglecting school duties, missing classes at school due to work, and with working time. With work performed in childhood are associated positive and negative emotions experienced in childhood and adulthood. The performance of work in childhood shapes emotions experienced by an adult which may affect his/her quality of life and functioning in adulthood.

43 CFR 3836.10 - Performing assessment work.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false Performing assessment work. 3836.10... MANAGEMENT, DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT (3000) ANNUAL ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Performing Assessment Work § 3836.10 Performing assessment work. ...

Mental ability and psychological work performance in Chinese workers.

PubMed

Zhong, Fei; Yano, Eiji; Lan, Yajia; Wang, Mianzhen; Wang, Zhiming; Wang, Xiaorong

2006-10-01

This study was to explore the relationship among mental ability, occupational stress, and psychological work performance in Chinese workers, and to identify relevant modifiers of mental ability and psychological work performance. Psychological Stress Intensity (PSI), psychological work performance, and mental ability (Mental Function Index, MFI) were determined among 485 Chinese workers (aged 33 to 62 yr, 65% of men) with varied work occupations. Occupational Stress Questionnaire (OSQ) and mental ability with 3 tests (including immediate memory, digit span, and cipher decoding) were used. The relationship between mental ability and psychological work performance was analyzed with multiple linear regression approach. PSI, MFI, or psychological work performance were significantly different among different work types and educational level groups (p<0.01). Multiple linear regression analysis showed that MFI was significantly related to gender, age, educational level, and work type. Higher MFI and lower PSI predicted a better psychological work performance, even after adjusted for gender, age, educational level, and work type. The study suggests that occupational stress and low mental ability are important predictors for poor psychological work performance, which is modified by both gender and educational level.

Relationship between meaningful work and job performance in nurses.

PubMed

Tong, Ling

2018-04-01

The present study was designed to determine the relationship between meaningful work and job performance, and the impact of meaningful work on nursing care quality. Meaningful work has been suggested as a significant factor affecting job performance, but the relationship has never been studied in nurses in China. A descriptive correlational study was designed to assess the level of meaningful work, tasks, and contextual performance as well as their relationships. We used a stratified random-sampling approach to enrol nurses from hospitals. Multivariate regression analysis was applied to determine the relationship between meaningful work and their demographic data. There were significant, positive relationships between meaningful work and task performance and contextual performance. Education level, work unit, and employment type influenced meaningful work. The work motivation score of the nurses was lower than that of the other 2 dimensions, and a negative work motivation score negatively influenced job performance. Improving meaningful work and providing more support and assistance could improve nurse performance, thereby improving the quality of nursing care. © 2018 John Wiley & Sons Australia, Ltd.

48 CFR 852.236-72 - Performance of work by the contractor.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Performance of work by the....236-72 Performance of work by the contractor. As prescribed in 836.501, insert the following clause: Performance of Work by the Contractor (JUL 2002) The clause entitled “Performance of Work by the Contractor...

Moderating effects of coping on work stress and job performance for nurses in tertiary hospitals: a cross-sectional survey in China.

PubMed

Li, Li; Ai, Hua; Gao, Lei; Zhou, Hao; Liu, Xinyan; Zhang, Zhong; Sun, Tao; Fan, Lihua

2017-06-12

Work stress is a major problem for nurses and it can negatively influence job performance. Therefore, it is critical to explore variables that can reduce or buffer the negative effects of work stress. This study explores the moderating effects of coping strategies on the relationship between work stress and job performance for nurses in China. A cross-sectional survey of 852 nurses from four tertiary hospitals in Heilongjiang Province, China, was conducted in 2013. Descriptive statistics were reported for socioeconomic status and demographic characteristics, level of work stress, coping strategies, and job performance. Regression analysis was conducted to test the interaction between work stress and coping strategies on job performance. Three subscales of work stress were negatively related to job performance. Positive coping strategies moderated Patient Care and job performance while negative coping strategies moderated Workload and Time and performance, and between Working Environment and Resources and performance. Positive coping strategies reduce or buffer the negative effects of work stress on job performance and negative coping strategies increased the negative effects.

48 CFR 37.602 - Performance work statement.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 48 Federal Acquisition Regulations System 1 2011-10-01 2011-10-01 false Performance work statement... CATEGORIES OF CONTRACTING SERVICE CONTRACTING Performance-Based Acquisition 37.602 Performance work statement. (a) A Performance work statement (PWS) may be prepared by the Government or result from a Statement...

43 CFR 3836.15 - What happens if I fail to perform required assessment work?

Code of Federal Regulations, 2011 CFR

2011-10-01

... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false What happens if I fail to perform required... ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Performing Assessment Work § 3836.15 What happens if I fail to perform required assessment work? If you are required to perform assessment work and— (a) You fail to...

43 CFR 3836.15 - What happens if I fail to perform required assessment work?

Code of Federal Regulations, 2014 CFR

2014-10-01

... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false What happens if I fail to perform required... ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Performing Assessment Work § 3836.15 What happens if I fail to perform required assessment work? If you are required to perform assessment work and— (a) You fail to...

43 CFR 3836.15 - What happens if I fail to perform required assessment work?

Code of Federal Regulations, 2012 CFR

2012-10-01

... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false What happens if I fail to perform required... ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Performing Assessment Work § 3836.15 What happens if I fail to perform required assessment work? If you are required to perform assessment work and— (a) You fail to...

43 CFR 3836.15 - What happens if I fail to perform required assessment work?

Code of Federal Regulations, 2013 CFR

2013-10-01

... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false What happens if I fail to perform required... ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Performing Assessment Work § 3836.15 What happens if I fail to perform required assessment work? If you are required to perform assessment work and— (a) You fail to...

Conceptual frameworks of individual work performance: a systematic review.

PubMed

Koopmans, Linda; Bernaards, Claire M; Hildebrandt, Vincent H; Schaufeli, Wilmar B; de Vet Henrica, C W; van der Beek, Allard J

2011-08-01

Individual work performance is differently conceptualized and operationalized in different disciplines. The aim of the current review was twofold: (1) identifying conceptual frameworks of individual work performance and (2) integrating these to reach a heuristic conceptual framework. A systematic review was conducted in medical, psychological, and management databases. Studies were selected independently by two researchers and included when they presented a conceptual framework of individual work performance. A total of 17 generic frameworks (applying across occupations) and 18 job-specific frameworks (applying to specific occupations) were identified. Dimensions frequently used to describe individual work performance were task performance, contextual performance, counterproductive work behavior, and adaptive performance. On the basis of the literature, a heuristic conceptual framework of individual work performance was proposed. This framework can serve as a theoretical basis for future research and practice.

Draft Statement of Work / Performance Work Statement SOL-R3-13-00006: Region 3 - National Remedial Action Contracts / Multiple Award Competition

EPA Pesticide Factsheets

Region 3 - EPA is performing market research to determine if industry has the capability and capacity to perform the work, on a national level, as described in the attached draft Statement of Work /Performance Work Statement(SOW/PWS).

7 CFR 1924.6 - Performing development work.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 7 Agriculture 12 2011-01-01 2011-01-01 false Performing development work. 1924.6 Section 1924.6... Performing development work. All construction work will be performed by one, or a combination, of the following methods: Contract, borrower, mutual self-help, or owner-builder. All development work must be...

Resources on work zone safety and mobility performance monitoring and measurement.

DOT National Transportation Integrated Search

2013-01-01

Work zone performance measures are metrics that help quantify how work zones impact travelers, residents, businesses, and workers. Some performance measures describe how an individual work zone impacts these audiences; other performance measures desc...

29 CFR 785.41 - Work performed while traveling.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 29 Labor 3 2011-07-01 2011-07-01 false Work performed while traveling. 785.41 Section 785.41 Labor... Traveltime § 785.41 Work performed while traveling. Any work which an employee is required to perform while... facilities furnished by the employer. Adjusting Grievances, Medical Attention, Civic and Charitable Work, and...

48 CFR 52.236-1 - Performance of Work by the Contractor.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Performance of Work by the....236-1 Performance of Work by the Contractor. As prescribed in 36.501(b), insert the following clause... the work and customary or necessary specialty subcontracting (see 36.501(a)).] Performance of Work by...

Impacts on work absence and performance: what really matters?

PubMed

Wynne-Jones, Gwenllian; Buck, Rhiannon; Varnava, Alice; Phillips, Ceri; Main, Chris J

2009-12-01

A number of factors influence an individual's decision to take sickness absence or to remain at work while ill. The relationship between health, work characteristics, individual perceptions of work and sickness absence and performance is complex and further clarification of the interactions between these factors is necessary. To assess the relative impact of health, work characteristics and perceptions of work on absence and performance. Cross-sectional survey of two public sector organizations (n = 505). Data were analysed using multivariate linear regression to assess the individual and combined influence of each class of independent variables on the following: days sickness absence, spells of sickness absence, VAS performance and presenteeism. Characteristics of work were weakly associated with days absence and performance. Perceptions of work were more strongly associated with performance than absence. Measures of mental health, rather than physical health, had the greatest influence on ability to work. Poor health had a greater impact on work performance than work absence. When considered together, health variables accounted for the largest proportion of explained variance in both absence and performance when compared with characteristics of work and work perceptions. Using absence as a marker of health-associated compromise at work may lead to an underestimation of the impact of health on work. This study demonstrates the need to manage the impact of health problems on the workforce not only from a bio-medical perspective but also in terms of the psychological pressures and the social context in which employees work.

75 FR 9544 - Inmate Work and Performance Pay Program

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-03

... inmate may receive performance pay only for that portion of the month that the inmate was working... Inmate Work and Performance Pay Program AGENCY: Bureau of Prisons, Justice. ACTION: Proposed rule... work and performance pay by removing redundant language and provisions that relate solely to staff...

30 CFR 75.1726 - Performing work from a raised position; safeguards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... the use of equipment specifically designed as elevated mobile work platforms. (b) No work shall be... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Performing work from a raised position....1726 Performing work from a raised position; safeguards. (a) Men shall not work on or from a piece of...

Is functional integration of resting state brain networks an unspecific biomarker for working memory performance?

PubMed

Alavash, Mohsen; Doebler, Philipp; Holling, Heinz; Thiel, Christiane M; Gießing, Carsten

2015-03-01

Is there one optimal topology of functional brain networks at rest from which our cognitive performance would profit? Previous studies suggest that functional integration of resting state brain networks is an important biomarker for cognitive performance. However, it is still unknown whether higher network integration is an unspecific predictor for good cognitive performance or, alternatively, whether specific network organization during rest predicts only specific cognitive abilities. Here, we investigated the relationship between network integration at rest and cognitive performance using two tasks that measured different aspects of working memory; one task assessed visual-spatial and the other numerical working memory. Network clustering, modularity and efficiency were computed to capture network integration on different levels of network organization, and to statistically compare their correlations with the performance in each working memory test. The results revealed that each working memory aspect profits from a different resting state topology, and the tests showed significantly different correlations with each of the measures of network integration. While higher global network integration and modularity predicted significantly better performance in visual-spatial working memory, both measures showed no significant correlation with numerical working memory performance. In contrast, numerical working memory was superior in subjects with highly clustered brain networks, predominantly in the intraparietal sulcus, a core brain region of the working memory network. Our findings suggest that a specific balance between local and global functional integration of resting state brain networks facilitates special aspects of cognitive performance. In the context of working memory, while visual-spatial performance is facilitated by globally integrated functional resting state brain networks, numerical working memory profits from increased capacities for local processing, especially in brain regions involved in working memory performance. Copyright © 2014 Elsevier Inc. All rights reserved.

Physicians' professional performance: an occupational health psychology perspective.

PubMed

Scheepers, Renée A

2017-12-01

Physician work engagement is considered to benefit physicians' professional performance in clinical teaching practice. Following an occupational health psychology perspective, this PhD report presents research on how physicians' professional performance in both doctor and teacher roles can be facilitated by work engagement and how work engagement is facilitated by job resources and personality traits. First, we conducted a systematic review on the impact of physician work engagement and related constructs (e. g. job satisfaction) on physicians' performance in patient care. We additionally investigated physician work engagement and job resources in relation to patient care experience with physicians' performance at ten outpatient clinics covering two hospitals. In a following multicentre survey involving 61 residency training programs of 18 hospitals, we studied associations between physician work engagement and personality traits with resident evaluations of physicians' teaching performance. The findings showed that physician work engagement was associated with fewer reported medical errors and that job satisfaction was associated with better communication and patient satisfaction. Autonomy and learning opportunities were positively associated with physician work engagement. Work engagement was positively associated with teaching performance. In addition, physician work engagement was most likely supported by personality trait conscientiousness (e. g. responsibility). Given the reported associations of physician work engagement with aspects of their professional performance, hospitals could support physician work engagement in service of optimal performance in residency training and patient care. This could be facilitated by worker health surveillance, peer support or promoting job crafting at the individual or team level.

13 CFR 126.700 - What are the performance of work requirements for HUBZone contracts?

Code of Federal Regulations, 2010 CFR

2010-01-01

... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false What are the performance of work... ADMINISTRATION HUBZONE PROGRAM Contract Performance Requirements § 126.700 What are the performance of work... meet the performance of work requirements set forth in § 125.6(c) of this chapter. (b) In addition to...

The impact of patellar tendinopathy on sports and work performance in active athletes.

PubMed

De Vries, Astrid J; Koolhaas, Wendy; Zwerver, Johannes; Diercks, Ron L; Nieuwenhuis, Kari; Van Der Worp, Henk; Brouwer, Sandra; Van Den Akker-Scheek, Inge

2017-01-01

Greater insight into sports and work performance of athletes with patellar tendinopathy (PT) will help establish the severity of this common overuse injury. Primary aim of this study is to investigate the impact of PT on sports and work performance. Seventy seven active athletes with PT (50 males; age 28.1 ± 8.2 years; Victorian Institute of Sports Assessment Patella 56.4 ± 12.3) participated in this survey. Sports performance, work ability and work productivity were assessed using the Oslo Sports Trauma Research Center overuse injury questionnaire, the single-item Work Ability Index and the Quantity and Quality questionnaire, respectively. Reduced sports performance was reported by 55% of the participants; 16% reported reduced work ability and 36% decreased work productivity, with 23% and 58%, respectively, for physically demanding work. This study shows that the impact of PT on sports and work performance is substantial and stresses the importance of developing preventive measures.

Comparative Performance in Single-Port Versus Multiport Minimally Invasive Surgery, and Small Versus Large Operative Working Spaces

PubMed Central

Marcus, Hani J.; Seneci, Carlo A.; Hughes-Hallett, Archie; Cundy, Thomas P.; Nandi, Dipankar; Yang, Guang-Zhong; Darzi, Ara

2015-01-01

Background. Surgical approaches such as transanal endoscopic microsurgery, which utilize small operative working spaces, and are necessarily single-port, are particularly demanding with standard instruments and have not been widely adopted. The aim of this study was to compare simultaneously surgical performance in single-port versus multiport approaches, and small versus large working spaces. Methods. Ten novice, 4 intermediate, and 1 expert surgeons were recruited from a university hospital. A preclinical randomized crossover study design was implemented, comparing performance under the following conditions: (1) multiport approach and large working space, (2) multiport approach and intermediate working space, (3) single-port approach and large working space, (4) single-port approach and intermediate working space, and (5) single-port approach and small working space. In each case, participants performed a peg transfer and pattern cutting tasks, and each task repetition was scored. Results. Intermediate and expert surgeons performed significantly better than novices in all conditions (P < .05). Performance in single-port surgery was significantly worse than multiport surgery (P < .01). In multiport surgery, there was a nonsignificant trend toward worsened performance in the intermediate versus large working space. In single-port surgery, there was a converse trend; performances in the intermediate and small working spaces were significantly better than in the large working space. Conclusions. Single-port approaches were significantly more technically challenging than multiport approaches, possibly reflecting loss of instrument triangulation. Surprisingly, in single-port approaches, in which triangulation was no longer a factor, performance in large working spaces was worse than in intermediate and small working spaces. PMID:26464468

28 CFR 345.41 - Performance appraisal for inmate workers.

Code of Federal Regulations, 2013 CFR

2013-07-01

... inmate's skills, abilities, qualifications, and work performance are sufficiently developed to enable the... FEDERAL PRISON INDUSTRIES (FPI) INMATE WORK PROGRAMS Inmate Worker Standards and Performance Appraisal § 345.41 Performance appraisal for inmate workers. Work supervisors should complete a performance...

28 CFR 345.41 - Performance appraisal for inmate workers.

Code of Federal Regulations, 2011 CFR

2011-07-01

... inmate's skills, abilities, qualifications, and work performance are sufficiently developed to enable the... FEDERAL PRISON INDUSTRIES (FPI) INMATE WORK PROGRAMS Inmate Worker Standards and Performance Appraisal § 345.41 Performance appraisal for inmate workers. Work supervisors should complete a performance...

28 CFR 345.41 - Performance appraisal for inmate workers.

Code of Federal Regulations, 2014 CFR

2014-07-01

... inmate's skills, abilities, qualifications, and work performance are sufficiently developed to enable the... FEDERAL PRISON INDUSTRIES (FPI) INMATE WORK PROGRAMS Inmate Worker Standards and Performance Appraisal § 345.41 Performance appraisal for inmate workers. Work supervisors should complete a performance...

28 CFR 345.41 - Performance appraisal for inmate workers.

Code of Federal Regulations, 2012 CFR

2012-07-01

... inmate's skills, abilities, qualifications, and work performance are sufficiently developed to enable the... FEDERAL PRISON INDUSTRIES (FPI) INMATE WORK PROGRAMS Inmate Worker Standards and Performance Appraisal § 345.41 Performance appraisal for inmate workers. Work supervisors should complete a performance...

28 CFR 345.41 - Performance appraisal for inmate workers.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PRISON INDUSTRIES (FPI) INMATE WORK PROGRAMS Inmate Worker Standards and Performance Appraisal § 345.41 Performance appraisal for inmate workers. Work supervisors should complete a performance... inmate's skills, abilities, qualifications, and work performance are sufficiently developed to enable the...

29 CFR 785.12 - Work performed away from the premises or job site.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 29 Labor 3 2010-07-01 2010-07-01 false Work performed away from the premises or job site. 785.12... of Principles Employees âsuffered Or Permittedâ to Work § 785.12 Work performed away from the premises or job site. The rule is also applicable to work performed away from the premises or the job site...

28 CFR 545.26 - Performance pay provisions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... categories as quality of work, quantity of work, initiative, ability to learn, dependability, response to... inmate may receive special bonus pay based on the inmate's exceptional work in a temporary job assignment... WORK AND COMPENSATION Inmate Work and Performance Pay Program § 545.26 Performance pay provisions. (a...

28 CFR 545.26 - Performance pay provisions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... categories as quality of work, quantity of work, initiative, ability to learn, dependability, response to... inmate may receive special bonus pay based on the inmate's exceptional work in a temporary job assignment... WORK AND COMPENSATION Inmate Work and Performance Pay Program § 545.26 Performance pay provisions. (a...

Changes in Brain Network Efficiency and Working Memory Performance in Aging

PubMed Central

Stanley, Matthew L.; Simpson, Sean L.; Dagenbach, Dale; Lyday, Robert G.; Burdette, Jonathan H.; Laurienti, Paul J.

2015-01-01

Working memory is a complex psychological construct referring to the temporary storage and active processing of information. We used functional connectivity brain network metrics quantifying local and global efficiency of information transfer for predicting individual variability in working memory performance on an n-back task in both young (n = 14) and older (n = 15) adults. Individual differences in both local and global efficiency during the working memory task were significant predictors of working memory performance in addition to age (and an interaction between age and global efficiency). Decreases in local efficiency during the working memory task were associated with better working memory performance in both age cohorts. In contrast, increases in global efficiency were associated with much better working performance for young participants; however, increases in global efficiency were associated with a slight decrease in working memory performance for older participants. Individual differences in local and global efficiency during resting-state sessions were not significant predictors of working memory performance. Significant group whole-brain functional network decreases in local efficiency also were observed during the working memory task compared to rest, whereas no significant differences were observed in network global efficiency. These results are discussed in relation to recently developed models of age-related differences in working memory. PMID:25875001

Changes in brain network efficiency and working memory performance in aging.

PubMed

Stanley, Matthew L; Simpson, Sean L; Dagenbach, Dale; Lyday, Robert G; Burdette, Jonathan H; Laurienti, Paul J

2015-01-01

Working memory is a complex psychological construct referring to the temporary storage and active processing of information. We used functional connectivity brain network metrics quantifying local and global efficiency of information transfer for predicting individual variability in working memory performance on an n-back task in both young (n = 14) and older (n = 15) adults. Individual differences in both local and global efficiency during the working memory task were significant predictors of working memory performance in addition to age (and an interaction between age and global efficiency). Decreases in local efficiency during the working memory task were associated with better working memory performance in both age cohorts. In contrast, increases in global efficiency were associated with much better working performance for young participants; however, increases in global efficiency were associated with a slight decrease in working memory performance for older participants. Individual differences in local and global efficiency during resting-state sessions were not significant predictors of working memory performance. Significant group whole-brain functional network decreases in local efficiency also were observed during the working memory task compared to rest, whereas no significant differences were observed in network global efficiency. These results are discussed in relation to recently developed models of age-related differences in working memory.

48 CFR 37.602 - Performance work statement.

Code of Federal Regulations, 2010 CFR

2010-10-01

... on the use of measurable performance standards and financial incentives in a competitive environment... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Performance work statement... CATEGORIES OF CONTRACTING SERVICE CONTRACTING Performance-Based Acquisition 37.602 Performance work statement...

Relationships between tea and other beverage consumption to work performance and mood.

PubMed

Bryan, Janet; Tuckey, Michelle; Einöther, Suzanne J L; Garczarek, Ursula; Garrick, Adam; De Bruin, Eveline A

2012-02-01

The aim of this research was to examine relationships between tea, coffee and other beverage consumption and associates of work performance and mood among individuals in relatively stressful and cognitively demanding work-place settings. Using a naturalistic, cross-sectional study design, 95 professional and academic staff logged their beverage intake and completed self-reports of associates of work performance (fatigue/exhaustion, mindfulness, work engagement), subjective work performance, mood, work-related strain and recovery four times daily during ten working days. Data were analysed using multilevel modelling in keeping with the hierarchical structure of the data. Tea consumption was associated with increased perceived work performance and reduced tiredness, especially when consumed without milk or sugar. Consumption of non-caffeinated beverages was associated with increased relaxation and recovery from work. In contrast, tea and other caffeinated beverages were found to enhance the negative effects of evening recovery and morning mood on mindfulness during the day. The findings suggest that beverage intake may have a role in optimising work-related psychological states and performance. Copyright © 2011 Elsevier Ltd. All rights reserved.

29 CFR 1620.18 - Jobs performed under similar working conditions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 29 Labor 4 2012-07-01 2012-07-01 false Jobs performed under similar working conditions. 1620.18... THE EQUAL PAY ACT § 1620.18 Jobs performed under similar working conditions. (a) In general. In order for the equal pay standard to apply, the jobs are required to be performed under similar working...

29 CFR 1620.18 - Jobs performed under similar working conditions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 29 Labor 4 2014-07-01 2014-07-01 false Jobs performed under similar working conditions. 1620.18... THE EQUAL PAY ACT § 1620.18 Jobs performed under similar working conditions. (a) In general. In order for the equal pay standard to apply, the jobs are required to be performed under similar working...

29 CFR 1620.18 - Jobs performed under similar working conditions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 29 Labor 4 2011-07-01 2011-07-01 false Jobs performed under similar working conditions. 1620.18... THE EQUAL PAY ACT § 1620.18 Jobs performed under similar working conditions. (a) In general. In order for the equal pay standard to apply, the jobs are required to be performed under similar working...

29 CFR 1620.18 - Jobs performed under similar working conditions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 29 Labor 4 2013-07-01 2013-07-01 false Jobs performed under similar working conditions. 1620.18... THE EQUAL PAY ACT § 1620.18 Jobs performed under similar working conditions. (a) In general. In order for the equal pay standard to apply, the jobs are required to be performed under similar working...

29 CFR 1620.18 - Jobs performed under similar working conditions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 29 Labor 4 2010-07-01 2010-07-01 false Jobs performed under similar working conditions. 1620.18... THE EQUAL PAY ACT § 1620.18 Jobs performed under similar working conditions. (a) In general. In order for the equal pay standard to apply, the jobs are required to be performed under similar working...

10 CFR 830.201 - Performance of work.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 10 Energy 4 2010-01-01 2010-01-01 false Performance of work. 830.201 Section 830.201 Energy DEPARTMENT OF ENERGY NUCLEAR SAFETY MANAGEMENT Safety Basis Requirements § 830.201 Performance of work. A contractor must perform work in accordance with the safety basis for a hazard category 1, 2, or 3 DOE nuclear...

14 CFR 151.53 - Performance of construction work: Labor requirements.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Performance of construction work: Labor... § 151.53 Performance of construction work: Labor requirements. A sponsor who is required to include in a... during the performance of work under the contract, to the extent necessary to determine whether the...

48 CFR 836.501 - Performance of work by the contractor.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Performance of work by the... Performance of work by the contractor. The contracting officer shall insert the clause at 852.236-72, Performance of work by the contractor, in solicitations and contracts for construction that contain the FAR...

Borderline personality symptoms and work performance: a population-based survey.

PubMed

Juurlink, Trees T; Ten Have, Margreet; Lamers, Femke; van Marle, Hein J F; Anema, Johannes R; de Graaf, Ron; Beekman, Aartjan T F

2018-06-19

This study aims to elucidate the interplay between borderline personality symptoms and working conditions as a pathway for impaired work performance among workers in the general population. Cross-sectional data from the Netherlands Mental Health Survey and Incidence Study-2 (NEMESIS-2) were used, including 3672 workers. Borderline personality symptoms were measured with the International Personality Disorder Examination (IPDE) questionnaire. Working conditions (decision latitude, psychological job demands, job security and co-worker support) were assessed with the Job Content Questionnaire (JCQ). Impaired work performance was assessed as total work loss days per month, defined as the sum of days of three types of impaired work performance (inability to work, cut-down to work, and diminished quality at work). These were assessed with the WHO Disability Assessment Schedule (WHO-DAS). Common mental disorders (CMD) were assessed with the Composite International Diagnostic Interview (CIDI). Number of borderline personality symptoms was consistently associated with impaired work performance, even after controlling for type or number of adverse working conditions and co-occurrence of CMD. Borderline personality symptoms were associated with low decision latitude, job insecurity and low co-worker support. The relationship between borderline personality symptoms and work performance diminished slightly after controlling for type or number of working conditions. The current study shows that having borderline personality symptoms is a unique determinant of work performance. This association seems partially explained through the impact of borderline personality symptoms on working conditions. Future studies are warranted to study causality and should aim at diminishing borderline personality symptoms and coping with working conditions.

Visuospatial working memory in very preterm and term born children--impact of age and performance.

PubMed

Mürner-Lavanchy, I; Ritter, B C; Spencer-Smith, M M; Perrig, W J; Schroth, G; Steinlin, M; Everts, R

2014-07-01

Working memory is crucial for meeting the challenges of daily life and performing academic tasks, such as reading or arithmetic. Very preterm born children are at risk of low working memory capacity. The aim of this study was to examine the visuospatial working memory network of school-aged preterm children and to determine the effect of age and performance on the neural working memory network. Working memory was assessed in 41 very preterm born children and 36 term born controls (aged 7-12 years) using functional magnetic resonance imaging (fMRI) and neuropsychological assessment. While preterm children and controls showed equal working memory performance, preterm children showed less involvement of the right middle frontal gyrus, but higher fMRI activation in superior frontal regions than controls. The younger and low-performing preterm children presented an atypical working memory network whereas the older high-performing preterm children recruited a working memory network similar to the controls. Results suggest that younger and low-performing preterm children show signs of less neural efficiency in frontal brain areas. With increasing age and performance, compensational mechanisms seem to occur, so that in preterm children, the typical visuospatial working memory network is established by the age of 12 years. Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.

Conscientiousness, openness to experience and extraversion as predictors of nursing work performance: a facet-level analysis.

PubMed

Ellershaw, Julia; Fullarton, Christie; Rodwell, John; Mcwilliams, John

2016-03-01

This study examined the relationships between the personality traits of conscientiousness, openness and extraversion at trait and facet-levels and three indicators of work role performance; proficiency, 'adaptivity' and proactivity measured at individual, team and organisational levels. This is one of the first studies to explore the relationship between personality, measured at trait and facet-level and performance using a comprehensive range of performance indicators. An online survey of 393 nurses from health-care organisations across Australia was conducted to test hypothesised relationships. Path analyses revealed numerous relationships between personality, measured at both trait and facet-levels, and work role performance. Conscientiousness was highlighted as the strongest driver of work role performance across all the indicators, with extraversion also strongly associated with work role performance. Openness to experience, previously considered a week predictor of performance, was, when examined at the facet-level, related to all of the work role performance indicators. Results suggests a bandwidth effect, where the personality traits drive global performance while the facets drive specific performance. Better understanding of the relationship between personality and work role performance will help nurse managers to foster the fit between individual and organisation, improving job satisfaction, engagement, retention and performance in role. © 2015 John Wiley & Sons Ltd.

A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers.

PubMed

Lamb, S; Kwok, K C S

2016-01-01

This study uses a longitudinal within-subjects design to investigate the effects of inadequate Indoor Environmental Quality (IEQ) on work performance and wellbeing in a sample of 114 office workers over a period of 8 months. Participants completed a total of 2261 online surveys measuring perceived thermal comfort, lighting comfort and noise annoyance, measures of work performance, and individual state factors underlying performance and wellbeing. Characterising inadequate aspects of IEQ as environmental stressors, these stress factors can significantly reduce self-reported work performance and objectively measured cognitive performance by between 2.4% and 5.8% in most situations, and by up to 14.8% in rare cases. Environmental stressors act indirectly on work performance by reducing state variables, motivation, tiredness, and distractibility, which support high-functioning work performance. Exposure to environmental stress appears to erode individuals' resilience, or ability to cope with additional task demands. These results indicate that environmental stress reduces not only the cognitive capacity for work, but the rate of work (i.e. by reducing motivation). Increasing the number of individual stress factors is associated with a near linear reduction in work performance indicating that environmental stress factors are additive, not multiplicative. Environmental stressors reduce occupant wellbeing (mood, headaches, and feeling 'off') causing indirect reductions in work performance. Improving IEQ will likely produce small but pervasive increases in productivity. Copyright © 2015 Elsevier Ltd and The Ergonomics Society. All rights reserved.

Comparative Performance in Single-Port Versus Multiport Minimally Invasive Surgery, and Small Versus Large Operative Working Spaces: A Preclinical Randomized Crossover Trial.

PubMed

Marcus, Hani J; Seneci, Carlo A; Hughes-Hallett, Archie; Cundy, Thomas P; Nandi, Dipankar; Yang, Guang-Zhong; Darzi, Ara

2016-04-01

Surgical approaches such as transanal endoscopic microsurgery, which utilize small operative working spaces, and are necessarily single-port, are particularly demanding with standard instruments and have not been widely adopted. The aim of this study was to compare simultaneously surgical performance in single-port versus multiport approaches, and small versus large working spaces. Ten novice, 4 intermediate, and 1 expert surgeons were recruited from a university hospital. A preclinical randomized crossover study design was implemented, comparing performance under the following conditions: (1) multiport approach and large working space, (2) multiport approach and intermediate working space, (3) single-port approach and large working space, (4) single-port approach and intermediate working space, and (5) single-port approach and small working space. In each case, participants performed a peg transfer and pattern cutting tasks, and each task repetition was scored. Intermediate and expert surgeons performed significantly better than novices in all conditions (P < .05). Performance in single-port surgery was significantly worse than multiport surgery (P < .01). In multiport surgery, there was a nonsignificant trend toward worsened performance in the intermediate versus large working space. In single-port surgery, there was a converse trend; performances in the intermediate and small working spaces were significantly better than in the large working space. Single-port approaches were significantly more technically challenging than multiport approaches, possibly reflecting loss of instrument triangulation. Surprisingly, in single-port approaches, in which triangulation was no longer a factor, performance in large working spaces was worse than in intermediate and small working spaces. © The Author(s) 2015.

Work stressors, Chinese coping strategies, and job performance in Greater China.

PubMed

Lu, Luo; Kao, Shu-Fang; Siu, Oi-Ling; Lu, Chang-Qin

2010-08-01

The aim of this research was to jointly test effects of work stressors and coping strategies on job performance among employees in the Greater China region. A self-administered survey was conducted to collect data from three major cities in the region, namely Beijing, Hong Kong, and Taipei (N = 380). Four important work stressors were assessed: heavy workload, organizational constraints, lack of work autonomy, and interpersonal conflict. We used a four-factor model of Chinese coping strategies composed of hobbies/relaxation, active action, seeking social support, and passive adaptation. Job performance was indicated by both task performance (quantity of work, quality of work, job knowledge) and contextual performance (attendance, getting along with others). We found that: (1) work stressors were related to job performance. Specifically, workload had a positive relation with quantity of work, whereas organizational constraints had negative relations with quantity of work and attendance. In addition, interpersonal conflict had a negative relation with getting along with others. (2) Chinese positive coping strategies were positively related to job performance. Specifically, seeking social support had positive relations with quantity of work and getting along with others, whereas active action had positive relations with attendance and job knowledge. (3) Chinese passive adaptation coping behaviors were negatively related to job performance. Specifically, passive adaptation had negative relations with quantity of work, quality of work, and getting along with others. The present study thus found joint effects of work stressors and coping behaviors among Chinese employees in the Greater China region, encompassing three sub-societies of mainland China, Hong Kong, and Taiwan. Differential effects of Chinese positive and passive coping strategies were also noted. Most importantly, all these effects were demonstrated on multiple indicators of job performance, a rarely studied but important strain variable from the organizational point of view.

Verbal working memory performance correlates with regional white matter structures in the frontoparietal regions.

PubMed

Takeuchi, Hikaru; Taki, Yasuyuki; Sassa, Yuko; Hashizume, Hiroshi; Sekiguchi, Atsushi; Fukushima, Ai; Kawashima, Ryuta

2011-10-01

Working memory is the limited capacity storage system involved in the maintenance and manipulation of information over short periods of time. Previous imaging studies have suggested that the frontoparietal regions are activated during working memory tasks; a putative association between the structure of the frontoparietal regions and working memory performance has been suggested based on the analysis of individuals with varying pathologies. This study aimed to identify correlations between white matter and individual differences in verbal working memory performance in normal young subjects. We performed voxel-based morphometry (VBM) analyses using T1-weighted structural images as well as voxel-based analyses of fractional anisotropy (FA) using diffusion tensor imaging. Using the letter span task, we measured verbal working memory performance in normal young adult men and women (mean age, 21.7 years, SD=1.44; 42 men and 13 women). We observed positive correlations between working memory performance and regional white matter volume (rWMV) in the frontoparietal regions. In addition, FA was found to be positively correlated with verbal working memory performance in a white matter region adjacent to the right precuneus. These regions are consistently recruited by working memory. Our findings suggest that, among normal young subjects, verbal working memory performance is associated with various regions that are recruited during working memory tasks, and this association is not limited to specific parts of the working memory network. Copyright © 2011 Elsevier Ltd. All rights reserved.

Factors Associated With Civilian Employment, Work Satisfaction, and Performance Among National Guard Members.

PubMed

Nelson, C Beau; Zivin, Kara; Walters, Heather; Ganoczy, Dara; MacDermid Wadsworth, Shelley; Valenstein, Marcia

2015-12-01

Employment is a vital part of the postdeployment return to civilian life. This study investigated factors associated with employment-related outcomes (employment status, self-reported work performance, and self-reported work satisfaction) among National Guard members returning from Operation Enduring Freedom, Operation Iraqi Freedom, or Operation New Dawn deployments. The sample consisted of 1,151 National Guard service members who had returned from overseas deployments approximately six months earlier. Bivariate and multivariable analyses were performed to examine associations between predictors and employment-related outcome variables. Higher-risk alcohol use was associated with reduced odds of being employed as well as with lower ratings of work satisfaction, whereas psychiatric symptom load was associated with lower self-reported work performance and work satisfaction ratings. Perceived social resources were associated with higher self-reported work performance and work satisfaction, whereas better physical functioning was associated with better self-reported work performance. Policy makers and clinicians may need to consider and assess alcohol use among unemployed National Guard members. They may also need to consider psychiatric symptom load and physical functioning among employed service members who perceive poor work performance and have low work satisfaction. Further research is needed on causal links between these predictors and employment outcomes.

38 CFR 1.929 - Reduction of debt through performance of work-study services.

Code of Federal Regulations, 2011 CFR

2011-07-01

... for the performance of work-study services after the completion of each 50 hours of services (or in... performance of work-study services. 1.929 Section 1.929 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF... performance of work-study services. (a) Scope. (1) Subject to the provisions of this section VA may allow an...

30 CFR 77.405 - Performing work from a raised position; safeguards.

Code of Federal Regulations, 2010 CFR

2010-07-01

... designed as elevated mobile work platforms. (b) No work shall be performed under machinery or equipment... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Performing work from a raised position... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS...

14 CFR 151.45 - Performance of construction work: General requirements.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Performance of construction work: General... § 151.45 Performance of construction work: General requirements. (a) All construction work under a... work under a project until— (1) The sponsor has furnished three conformed copies of the contract to the...

Effect of CO2, Nd:YAG and Er:YAG Lasers on Microtensile Bond Strength of Composite to Bleached-Enamel.

PubMed

Basir, Mahshid Mohammadi; Rezvani, Mohammad Bagher; Chiniforush, Nasim; Moradi, Zohreh

2016-01-01

Tooth restoration immediately after bleaching is challenging due to the potential problems in achieving adequate bond strength. The aim of this study was to evaluate the effect of surface treatment with ER:YAG, ND:YAG, CO2 lasers and 10% sodium ascorbate solution on immediate microtensile bond strength of composite resin to recently bleached enamel. Ninety sound molar teeth were randomly divided into three main groups (n:30) : NB (without bleaching), HB (bleached with 38% carbamide peroxide) and OB (bleached with Heydent bleaching gel assisted by diode laser). Each group was divided into five subgroups (n:6) : Si (without surface treatment), Er (Er:YAG laser), CO2 (CO2 laser), Nd (Nd:YAG laser) and As (Immersion in 10% sodium ascorbate solution). The bonding system was then applied and composite build-ups were constructed. The teeth were sectioned by low speed saw to obtain enamel- resin sticks and submitted to microtensile bond testing. Statistical analyses were done using two- way ANOVA, Tukey and Tamhane tests. µTBS of bleached teeth irradiated with ND:YAG laser was not significantly different from NB-Nd group. Microtensile bond strength of OB-Er group was higher than NB-Er and HB-Er groups. The mean µTBS of HB-CO2 group was higher than NB-CO2 group; the average µTBS of HB-As and OB-As groups was also higher than NB-As group. Use of Nd:YAG, CO2 lasers and 10% sodium ascorbate solution could improve the bond strength in home-bleached specimens. Application of ND:YAG laser on nonbleached specimens and Er:YAG laser on office-bleached specimens led to the highest µTBS in comparison to other surface treatments in each main group.

The contribution of attentional lapses to individual differences in visual working memory capacity.

PubMed

Adam, Kirsten C S; Mance, Irida; Fukuda, Keisuke; Vogel, Edward K

2015-08-01

Attentional control and working memory capacity are important cognitive abilities that substantially vary between individuals. Although much is known about how attentional control and working memory capacity relate to each other and to constructs like fluid intelligence, little is known about how trial-by-trial fluctuations in attentional engagement impact trial-by-trial working memory performance. Here, we employ a novel whole-report memory task that allowed us to distinguish between varying levels of attentional engagement in humans performing a working memory task. By characterizing low-performance trials, we can distinguish between models in which working memory performance failures are caused by either (1) complete lapses of attention or (2) variations in attentional control. We found that performance failures increase with set-size and strongly predict working memory capacity. Performance variability was best modeled by an attentional control model of attention, not a lapse model. We examined neural signatures of performance failures by measuring EEG activity while participants performed the whole-report task. The number of items correctly recalled in the memory task was predicted by frontal theta power, with decreased frontal theta power associated with poor performance on the task. In addition, we found that poor performance was not explained by failures of sensory encoding; the P1/N1 response and ocular artifact rates were equivalent for high- and low-performance trials. In all, we propose that attentional lapses alone cannot explain individual differences in working memory performance. Instead, we find that graded fluctuations in attentional control better explain the trial-by-trial differences in working memory that we observe.

Team performance in networked supervisory control of unmanned air vehicles: effects of automation, working memory, and communication content.

PubMed

McKendrick, Ryan; Shaw, Tyler; de Visser, Ewart; Saqer, Haneen; Kidwell, Brian; Parasuraman, Raja

2014-05-01

Assess team performance within a net-worked supervisory control setting while manipulating automated decision aids and monitoring team communication and working memory ability. Networked systems such as multi-unmanned air vehicle (UAV) supervision have complex properties that make prediction of human-system performance difficult. Automated decision aid can provide valuable information to operators, individual abilities can limit or facilitate team performance, and team communication patterns can alter how effectively individuals work together. We hypothesized that reliable automation, higher working memory capacity, and increased communication rates of task-relevant information would offset performance decrements attributed to high task load. Two-person teams performed a simulated air defense task with two levels of task load and three levels of automated aid reliability. Teams communicated and received decision aid messages via chat window text messages. Task Load x Automation effects were significant across all performance measures. Reliable automation limited the decline in team performance with increasing task load. Average team spatial working memory was a stronger predictor than other measures of team working memory. Frequency of team rapport and enemy location communications positively related to team performance, and word count was negatively related to team performance. Reliable decision aiding mitigated team performance decline during increased task load during multi-UAV supervisory control. Team spatial working memory, communication of spatial information, and team rapport predicted team success. An automated decision aid can improve team performance under high task load. Assessment of spatial working memory and the communication of task-relevant information can help in operator and team selection in supervisory control systems.

The Contribution of Attentional Lapses to Individual Differences in Visual Working Memory Capacity

PubMed Central

Adam, Kirsten C. S.; Mance, Irida; Fukuda, Keisuke; Vogel, Edward K.

2015-01-01

Attentional control and working memory capacity are important cognitive abilities that substantially vary between individuals. Although much is known about how attentional control and working memory capacity relate to each other and to constructs like fluid intelligence, little is known about how trial-by-trial fluctuations in attentional engagement impact trial-by-trial working memory performance. Here, we employ a novel whole-report memory task that allowed us to distinguish between varying levels of attentional engagement in humans performing a working memory task. By characterizing low-performance trials, we can distinguish between models in which working memory performance failures are caused by either (1) complete lapses of attention or (2) variations in attentional control. We found that performance failures increase with set-size and strongly predict working memory capacity. Performance variability was best modeled by an attentional control model of attention, not a lapse model. We examined neural signatures of performance failures by measuring EEG activity while participants performed the whole-report task. The number of items correctly recalled in the memory task was predicted by frontal theta power, with decreased frontal theta power associated with poor performance on the task. In addition, we found that poor performance was not explained by failures of sensory encoding; the P1/N1 response and ocular artifact rates were equivalent for high- and low-performance trials. In all, we propose that attentional lapses alone cannot explain individual differences in working memory performance. Instead, we find that graded fluctuations in attentional control better explain the trial-by-trial differences in working memory that we observe. PMID:25811710

28 CFR 545.26 - Performance pay provisions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... month that the inmate was working. Performance pay may not be awarded retroactively. (d) An inmate is... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Performance pay provisions. 545.26... WORK AND COMPENSATION Inmate Work and Performance Pay Program § 545.26 Performance pay provisions. (a...

An exploratory study of the effects of spatial working-memory load on prefrontal activation in low- and high-performing elderly.

PubMed

Vermeij, Anouk; van Beek, Arenda H E A; Reijs, Babette L R; Claassen, Jurgen A H R; Kessels, Roy P C

2014-01-01

Older adults show more bilateral prefrontal activation during cognitive performance than younger adults, who typically show unilateral activation. This over-recruitment has been interpreted as compensation for declining structure and function of the brain. Here we examined how the relationship between behavioral performance and prefrontal activation is modulated by different levels of working-memory load. Eighteen healthy older adults (70.8 ± 5.0 years; MMSE 29.3 ± 0.9) performed a spatial working-memory task (n-back). Oxygenated ([O2Hb]) and deoxygenated ([HHb]) hemoglobin concentration changes were registered by two functional Near-Infrared Spectroscopy (fNIRS) channels located over the left and right prefrontal cortex. Increased working-memory load resulted in worse performance compared to the control condition. [O2Hb] increased with rising working-memory load in both fNIRS channels. Based on the performance in the high working-memory load condition, the group was divided into low and high performers. A significant interaction effect of performance level and hemisphere on [O2Hb] increase was found, indicating that high performers were better able to keep the right prefrontal cortex engaged under high cognitive demand. Furthermore, in the low performers group, individuals with a larger decline in task performance from the control to the high working-memory load condition had a larger bilateral increase of [O2Hb]. The high performers did not show a correlation between performance decline and working-memory load related prefrontal activation changes. Thus, additional bilateral prefrontal activation in low performers did not necessarily result in better cognitive performance. Our study showed that bilateral prefrontal activation may not always be successfully compensatory. Individual behavioral performance should be taken into account to be able to distinguish successful and unsuccessful compensation or declined neural efficiency.

Teacher performance and work environment in the instructional process in vocational school

NASA Astrophysics Data System (ADS)

Kuncoro, Tri; Dardiri, Ahmad

2017-09-01

Teachers should have pedagogical, personality, social, and professional competency. stated that performance appraisal has several benefits, namely for the implementation of reward and punishment system, provision of feedback for teachers to develop their competencies, identification of training needs, and diagnosis of problems. According to performance is one's work result or success rate as a whole over a certain period of time in performing tasks compared to various possibilities, such as work standards, targets or criteria which have been predetermined and agreed. One's performance is based on daily tasks and responsibilities assigned to him/her. The racial differences in personality are largely due to different environmental influences, where people of different races have progressed for generations. Vocational high school teachers have a low pedagogic and professional performance. The factors that influence performance, according to the partner-lawyer model proposed, are expectations about rewards, encouragements, abilities, needs and traits, perceptions of tasks, internal and external rewards, perceptions of reward levels and job satisfaction. This study used a survey method to collect data or information about a large population using relatively small samples. The population of this research was vocational high school teachers. Data analysis techniques used the Regression Analysis with the assistance of SPSS. The results of teacher performance are as follows: 1) the pedagogic performance was relatively good; 2) professional performance was relatively good, and the overall performance of vocational high school teachers was still less effective and efficient; 3) the teachers' work environment was 42.5234%; and 4) there was no correlation between work environment and teacher performance, meaning that the work environment (conditions of physical work environment, psychological work environment, and non-physical work environment) does not positively support the pedagogical and professional performance of teachers.

Contralateral Delay Activity Tracks Fluctuations in Working Memory Performance.

PubMed

Adam, Kirsten C S; Robison, Matthew K; Vogel, Edward K

2018-01-08

Neural measures of working memory storage, such as the contralateral delay activity (CDA), are powerful tools in working memory research. CDA amplitude is sensitive to working memory load, reaches an asymptote at known behavioral limits, and predicts individual differences in capacity. An open question, however, is whether neural measures of load also track trial-by-trial fluctuations in performance. Here, we used a whole-report working memory task to test the relationship between CDA amplitude and working memory performance. If working memory failures are due to decision-based errors and retrieval failures, CDA amplitude would not differentiate good and poor performance trials when load is held constant. If failures arise during storage, then CDA amplitude should track both working memory load and trial-by-trial performance. As expected, CDA amplitude tracked load (Experiment 1), reaching an asymptote at three items. In Experiment 2, we tracked fluctuations in trial-by-trial performance. CDA amplitude was larger (more negative) for high-performance trials compared with low-performance trials, suggesting that fluctuations in performance were related to the successful storage of items. During working memory failures, participants oriented their attention to the correct side of the screen (lateralized P1) and maintained covert attention to the correct side during the delay period (lateralized alpha power suppression). Despite the preservation of attentional orienting, we found impairments consistent with an executive attention theory of individual differences in working memory capacity; fluctuations in executive control (indexed by pretrial frontal theta power) may be to blame for storage failures.

5 CFR 551.211 - Effect of performing different work or duties for a temporary period of time on FLSA exemption...

Code of Federal Regulations, 2010 CFR

2010-01-01

... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Effect of performing different work or... STANDARDS ACT Exemptions and Exclusions § 551.211 Effect of performing different work or duties for a temporary period of time on FLSA exemption status. (a) Applicability. Performing different work or duties...

Analysis of indoor environmental quality influence toward occupants' work performance in Kompleks Eureka, USM

NASA Astrophysics Data System (ADS)

Zainon, Mohamad Rizal; Baharum, Faizal; Seng, Loh Yong

2016-08-01

The indoor environment much more important for people health and comfort than the outdoor environment. This scenario would make the performance of occupants at their work more important than energy costs in the building. So, this task is to upgrade indoor environmental quality conditions for comfort and work performance of occupants in Kompleks Eureka, USM while conserving energy of the building.. Recent studies have shown an important impact of the indoor thermal environment on occupants' work performance. Also studies on occupants medical leave show a very high loss of work time and working performance, which have important economical consequences for companies. The paper will mainly dealing with the indoor environmental qualities, such as thermal comfort level, air quality, lighting, and acoustic quality. The studies before showing that comfortable room temperatures, increased air ventilation above normal recommendation, comfortable acoustic surrounding will increases the work performance of occupants in Kompleks Eureka, USM.

Variables associated with work performance in multidisciplinary mental health teams

PubMed Central

Fleury, Marie-Josée; Grenier, Guy; Bamvita, Jean-Marie; Chiocchio, François

2017-01-01

Objectives: This study investigates work performance among 79 mental health teams in Quebec (Canada). We hypothesized that work performance was positively associated with the use of standardized clinical tools and clinical approaches, integration strategies, “clan culture,” and mental health funding per capita. Methods: Work performance was measured using an adapted version of the Work Role Questionnaire. Variables were organized into four key areas: (1) team attributes, (2) organizational culture, (3) inter-organizational interactions, and (4) external environment. Results: Work performance was associated with two types of organizational culture (clan and hierarchy) and with two team attributes (use of standardized clinical tools and approaches). Discussion and conclusion: This study was innovative in identifying associations between work performance and best practices, justifying their implementation. Recommendations are provided to develop organizational cultures promoting a greater focus on the external environment and integration strategies that strengthen external focus, service effectiveness, and innovation. PMID:28839935

Effect of alternating postures on cognitive performance for healthy people performing sedentary work.

PubMed

Schwartz, Bernhard; Kapellusch, Jay M; Schrempf, Andreas; Probst, Kathrin; Haller, Michael; Baca, Arnold

2018-06-01

Prolonged sitting is a risk factor for several diseases and the prevalence of worksite-based interventions such as sit-to-stand workstations is increasing. Although their impact on sedentary behaviour has been regularly investigated, the effect of working in alternating body postures on cognitive performance is unclear. To address this uncertainty, 45 students participated in a two-arm, randomised controlled cross-over trial under laboratory conditions. Subjects executed validated cognitive tests (working speed, reaction time, concentration performance) either in sitting or alternating working postures on two separate days (ClinicalTrials.gov Identifier: NCT02863731). MANOVA results showed no significant difference in cognitive performance between trials executed in alternating, standing or sitting postures. Perceived workload did not differ between sitting and alternating days. Repeated measures ANOVA revealed significant learning effects regarding concentration performance and working speed for both days. These results suggest that working posture did not affect cognitive performance in the short term. Practitioner Summary: Prior reports indicated health-related benefits based on alternated (sit/stand) body postures. Nevertheless, their effect on cognitive performance is unknown. This randomised controlled trial showed that working in alternating body postures did not influence reaction time, concentration performance, working speed or workload perception in the short term.

Differential working memory correlates for implicit sequence performance in young and older adults.

PubMed

Bo, Jin; Jennett, S; Seidler, R D

2012-09-01

Our recent work has revealed that visuospatial working memory (VSWM) relates to the rate of explicit motor sequence learning (Bo and Seidler in J Neurophysiol 101:3116-3125, 2009) and implicit sequence performance (Bo et al. in Exp Brain Res 214:73-81, 2011a) in young adults (YA). Although aging has a detrimental impact on many cognitive functions, including working memory, older adults (OA) still rely on their declining working memory resources in an effort to optimize explicit motor sequence learning. Here, we evaluated whether age-related differences in VSWM and/or verbal working memory (VWM) performance relates to implicit performance change in the serial reaction time (SRT) sequence task in OA. Participants performed two computerized working memory tasks adapted from change detection working memory assessments (Luck and Vogel in Nature 390:279-281, 1997), an implicit SRT task and several neuropsychological tests. We found that, although OA exhibited an overall reduction in both VSWM and VWM, both OA and YA showed similar performance in the implicit SRT task. Interestingly, while VSWM and VWM were significantly correlated with each other in YA, there was no correlation between these two working memory scores in OA. In YA, the rate of SRT performance change (exponential fit to the performance curve) was significantly correlated with both VSWM and VWM, while in contrast, OA's performance was only correlated with VWM, and not VSWM. These results demonstrate differential reliance on VSWM and VWM for SRT performance between YA and OA. OA may utilize VWM to maintain optimized performance of second-order conditional sequences.

Effects of Performance-Based Financial Incentives on Work Performance: A Study of Technical-Level Employees in the Private Sector in Sri Lanka

ERIC Educational Resources Information Center

Wickramasinghe, Vathsala; Dabere, Sampath

2012-01-01

The objective of the study is to investigate the effect of performance-based financial incentives on work performance. The study hypothesized that the design features of performance-based financial incentive schemes themselves may influence individuals' work performance. For the study, survey methodology was used and 93 technical-level employees…

Exposure to Psychological Aggression at Work and Job Performance: The Mediating Role of Job Attitudes and Personal Health

PubMed Central

Schat, Aaron; Frone, Michael R.

2011-01-01

Despite the growing literature on workplace aggression and the importance of employee performance at work, few studies have examined the relation between workplace aggression and job performance. The purpose of this study was to investigate the relations between psychological aggression at work and two forms of job performance (task performance and contextual performance) and potential mediators of these relations. Based on Conservation of Resources theory and prior research, a model was developed and tested in which overall job attitudes (i.e., job satisfaction and organizational commitment) and overall personal health (i.e., physical and psychological health) fully mediate the relations between exposure to psychological aggression at work and both task performance and contextual performance. Data were obtained from a national probability sample of US workers (N = 2376) and the model was tested using structural equation modelling. The results supported the hypothesized model, demonstrating that exposure to psychological aggression at work negatively predicted both task performance and contextual performance, and that these relations were explained by decrements in job attitudes and health associated with exposure to psychological aggression at work. PMID:21643471

Exposure to Psychological Aggression at Work and Job Performance: The Mediating Role of Job Attitudes and Personal Health.

PubMed

Schat, Aaron; Frone, Michael R

2011-01-01

Despite the growing literature on workplace aggression and the importance of employee performance at work, few studies have examined the relation between workplace aggression and job performance. The purpose of this study was to investigate the relations between psychological aggression at work and two forms of job performance (task performance and contextual performance) and potential mediators of these relations. Based on Conservation of Resources theory and prior research, a model was developed and tested in which overall job attitudes (i.e., job satisfaction and organizational commitment) and overall personal health (i.e., physical and psychological health) fully mediate the relations between exposure to psychological aggression at work and both task performance and contextual performance. Data were obtained from a national probability sample of US workers (N = 2376) and the model was tested using structural equation modelling. The results supported the hypothesized model, demonstrating that exposure to psychological aggression at work negatively predicted both task performance and contextual performance, and that these relations were explained by decrements in job attitudes and health associated with exposure to psychological aggression at work.

Effect of Radiologists’ Diagnostic Work-up Volume on Interpretive Performance

PubMed Central

Anderson, Melissa L.; Smith, Robert A.; Carney, Patricia A.; Miglioretti, Diana L.; Monsees, Barbara S.; Sickles, Edward A.; Taplin, Stephen H.; Geller, Berta M.; Yankaskas, Bonnie C.; Onega, Tracy L.

2014-01-01

Purpose To examine radiologists’ screening performance in relation to the number of diagnostic work-ups performed after abnormal findings are discovered at screening mammography by the same radiologist or by different radiologists. Materials and Methods In an institutional review board–approved HIPAA-compliant study, the authors linked 651 671 screening mammograms interpreted from 2002 to 2006 by 96 radiologists in the Breast Cancer Surveillance Consortium to cancer registries (standard of reference) to evaluate the performance of screening mammography (sensitivity, false-positive rate [FPRfalse-positive rate], and cancer detection rate [CDRcancer detection rate]). Logistic regression was used to assess the association between the volume of recalled screening mammograms (“own” mammograms, where the radiologist who interpreted the diagnostic image was the same radiologist who had interpreted the screening image, and “any” mammograms, where the radiologist who interpreted the diagnostic image may or may not have been the radiologist who interpreted the screening image) and screening performance and whether the association between total annual volume and performance differed according to the volume of diagnostic work-up. Results Annually, 38% of radiologists performed the diagnostic work-up for 25 or fewer of their own recalled screening mammograms, 24% performed the work-up for 0–50, and 39% performed the work-up for more than 50. For the work-up of recalled screening mammograms from any radiologist, 24% of radiologists performed the work-up for 0–50 mammograms, 32% performed the work-up for 51–125, and 44% performed the work-up for more than 125. With increasing numbers of radiologist work-ups for their own recalled mammograms, the sensitivity (P = .039), FPRfalse-positive rate (P = .004), and CDRcancer detection rate (P < .001) of screening mammography increased, yielding a stepped increase in women recalled per cancer detected from 17.4 for 25 or fewer mammograms to 24.6 for more than 50 mammograms. Increases in work-ups for any radiologist yielded significant increases in FPRfalse-positive rate (P = .011) and CDRcancer detection rate (P = .001) and a nonsignificant increase in sensitivity (P = .15). Radiologists with a lower annual volume of any work-ups had consistently lower FPRfalse-positive rate, sensitivity, and CDRcancer detection rate at all annual interpretive volumes. Conclusion These findings support the hypothesis that radiologists may improve their screening performance by performing the diagnostic work-up for their own recalled screening mammograms and directly receiving feedback afforded by means of the outcomes associated with their initial decision to recall. Arranging for radiologists to work up a minimum number of their own recalled cases could improve screening performance but would need systems to facilitate this workflow. © RSNA, 2014 Online supplemental material is available for this article. PMID:24960110

Effect of radiologists' diagnostic work-up volume on interpretive performance.

PubMed

Buist, Diana S M; Anderson, Melissa L; Smith, Robert A; Carney, Patricia A; Miglioretti, Diana L; Monsees, Barbara S; Sickles, Edward A; Taplin, Stephen H; Geller, Berta M; Yankaskas, Bonnie C; Onega, Tracy L

2014-11-01

To examine radiologists' screening performance in relation to the number of diagnostic work-ups performed after abnormal findings are discovered at screening mammography by the same radiologist or by different radiologists. In an institutional review board-approved HIPAA-compliant study, the authors linked 651 671 screening mammograms interpreted from 2002 to 2006 by 96 radiologists in the Breast Cancer Surveillance Consortium to cancer registries (standard of reference) to evaluate the performance of screening mammography (sensitivity, false-positive rate [ FPR false-positive rate ], and cancer detection rate [ CDR cancer detection rate ]). Logistic regression was used to assess the association between the volume of recalled screening mammograms ("own" mammograms, where the radiologist who interpreted the diagnostic image was the same radiologist who had interpreted the screening image, and "any" mammograms, where the radiologist who interpreted the diagnostic image may or may not have been the radiologist who interpreted the screening image) and screening performance and whether the association between total annual volume and performance differed according to the volume of diagnostic work-up. Annually, 38% of radiologists performed the diagnostic work-up for 25 or fewer of their own recalled screening mammograms, 24% performed the work-up for 0-50, and 39% performed the work-up for more than 50. For the work-up of recalled screening mammograms from any radiologist, 24% of radiologists performed the work-up for 0-50 mammograms, 32% performed the work-up for 51-125, and 44% performed the work-up for more than 125. With increasing numbers of radiologist work-ups for their own recalled mammograms, the sensitivity (P = .039), FPR false-positive rate (P = .004), and CDR cancer detection rate (P < .001) of screening mammography increased, yielding a stepped increase in women recalled per cancer detected from 17.4 for 25 or fewer mammograms to 24.6 for more than 50 mammograms. Increases in work-ups for any radiologist yielded significant increases in FPR false-positive rate (P = .011) and CDR cancer detection rate (P = .001) and a nonsignificant increase in sensitivity (P = .15). Radiologists with a lower annual volume of any work-ups had consistently lower FPR false-positive rate , sensitivity, and CDR cancer detection rate at all annual interpretive volumes. These findings support the hypothesis that radiologists may improve their screening performance by performing the diagnostic work-up for their own recalled screening mammograms and directly receiving feedback afforded by means of the outcomes associated with their initial decision to recall. Arranging for radiologists to work up a minimum number of their own recalled cases could improve screening performance but would need systems to facilitate this workflow.

Work attendance among healthcare workers: prevalence, incentives, and long-term consequences for health and performance.

PubMed

Dellve, Lotta; Hadzibajramovic, Emina; Ahlborg, Gunnar

2011-09-01

This paper is a report of a cohort study of healthcare workers' work attendance, and its long-term consequences' on health, burnout, work ability and performance. Concepts and measures of work attendance have varied in the scientific literature. Attending work in spite of being sick can have serious consequences on health. There is little knowledge on which individual and work-related conditions that increase work attendance and the long-term impact on health and performance. Prospective analyses of three measures of work attendance i.e. sickness attendance, uninterrupted long-term attendance and balanced attendance (≤7 days of sick leave per year and no sickness attendance) were done using questionnaire data from a 2-year cohort study (2004-2006) of randomly selected healthcare workers (n = 2624). Incentives (e.g. effort-reward balance, social support, meaningfulness) and requirements (e.g. time-pressure, dutifulness, high responsibility) to attend work as well as general health, burnout, sick leave, work ability and performance were assessed. There was a positive relation between balanced work attendance and incentives, whereas high sickness attendance was associated with requirements. Follow up after 2 years showed that balanced attendance was associated with sustained health and performance while sickness attendance was associated with poor health, burnout, sick-leave and decreased performance. It is important to distinguish between measures of work attendance as they differ in relation to incentives, and health- and performance-related consequences. Sickness attendance seems to be an important risk indicator. A balanced work attendance should be promoted for sustained health and performance in healthcare organisations. © 2011 The Authors. Journal of Advanced Nursing © 2011 Blackwell Publishing Ltd.

Productivity loss at work; health-related and work-related factors.

PubMed

van den Heuvel, Swenne G; Geuskens, Goedele A; Hooftman, Wendela E; Koppes, Lando L J; van den Bossche, Seth N J

2010-09-01

Productivity loss is an increasing problem in an aging working population that is decreasing in numbers. The aim of this study is to identify work-related and health-related characteristics associated with productivity loss, due to either sickness absence or reduced performance at work. In this cross-sectional study, data of the Netherlands Working Conditions Survey of 2007 were used, which includes a national representative sample of 22,759 employees aged 15 to 64 years. Demographic characteristics, health-related and work-related factors were assessed with a questionnaire. Logistic regression analyses were carried out to study the relationship of work-related and health-related factors with low performance at work and sickness absence in the past 12 months. Poor general health, the number of longstanding health conditions, and most types of longstanding health conditions were associated with productivity loss. Health-related factors were in general stronger associated with sickness absence than with low performance at work. Performance: poor health OR 1.54 CI 1.38-1.71, >1 health conditions OR 1.21 CI 1.09-1.35; sickness absence: poor health OR 2.62 CI 2.33-2.93, >1 health conditions OR 2.47 CI 2.21-2.75. Of the different types of longstanding health conditions, only psychological complaints and to a small extent musculoskeletal symptoms, were associated with low performance (respectively OR 1.54 CI 1.27-1.87; OR 1.09 CI 1.00-1.18). Low performance at work was less likely among employees with high physically demanding work (shift work OR 0.70 CI 0.63-0.76, using force OR 0.78 CI 0.72-0.84, and repetitive movements OR 0.74 CI 0.70-0.79). Psychosocial factors were stronger associated with low performance at work than with sickness absence (performance: job autonomy OR 1.28 CI 1.21-1.37, job demands OR 1.23 CI 1.16-1.31, emotionally demanding work OR 1.73 CI 1.62-1.85; sickness absence: job autonomy ns, job demands OR 1.09 CI 1.03-1.17, emotionally demanding work OR 1.09 CI 1.02-1.16). Except for psychological complaints, workers with a longstanding health condition generally perform well while being at work. Nevertheless, the likelihood of taking sick leave is increased. Among work-related factors, psychosocial work characteristics have the strongest relation with productivity loss, mostly with performance while at work.

25 CFR 170.621 - What if a tribe fails to substantially perform work under a contract or agreement?

Code of Federal Regulations, 2014 CFR

2014-04-01

... 25 Indians 1 2014-04-01 2014-04-01 false What if a tribe fails to substantially perform work under... Contracts and Agreements Under Isdeaa § 170.621 What if a tribe fails to substantially perform work under a contract or agreement? If a tribe fails to substantially perform work under a contract or agreement: (a...

25 CFR 170.621 - What if a tribe fails to substantially perform work under a contract or agreement?

Code of Federal Regulations, 2013 CFR

2013-04-01

... 25 Indians 1 2013-04-01 2013-04-01 false What if a tribe fails to substantially perform work under... Contracts and Agreements Under Isdeaa § 170.621 What if a tribe fails to substantially perform work under a contract or agreement? If a tribe fails to substantially perform work under a contract or agreement: (a...

Family supportive supervisor behaviors and organizational culture: Effects on work engagement and performance.

PubMed

Rofcanin, Yasin; Las Heras, Mireia; Bakker, Arnold B

2017-04-01

Informed by social information processing (SIP) theory, in this study, we assessed the associations among family supportive supervisor behaviors (FSSBs) as perceived by subordinates, subordinate work engagement, and supervisor-rated work performance. Moreover, we explored the role of family supportive organizational culture as a contextual variable influencing our proposed associations. Our findings using matched supervisor-subordinate data collected from a financial credit company in Mexico (654 subordinates; 134 supervisors) showed that FSSBs influenced work performance through subordinate work engagement. Moreover, the positive association between subordinates' perceptions of FSSBs and work engagement was moderated by family supportive organizational culture. Our results contribute to emerging theories on flexible work arrangements, particularly on family supportive work policies. Moreover, our findings carry practical implications for improving employee work engagement and work performance. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Recovery Processes During and After Work: Associations With Health, Work Engagement, and Job Performance.

PubMed

de Bloom, Jessica; Kinnunen, Ulla; Korpela, Kalevi

2015-07-01

We examined energy management during work, recovery experiences after work and their connections to health, work engagement, and job performance. An online survey was completed by 1208 Finnish employees. Energy management was assessed through 13 strategies and recovery experiences through four experiences. As outcomes of recovery, we examined self-reported health, work engagement, and job performance. On average, employees applied three energy management strategies. The most beneficial strategies were work-related: shifting focus, goal setting, and helping coworkers. Both energy management and recovery experiences contributed to the outcomes. Employees benefit in terms of energy from shifting their focus to positive aspects of their jobs and demonstrating proactive social behavior at work. Recovery processes during and after work are closely connected to each other, to well-being and performance at work.

ADOLESCENT WORK INTENSITY, SCHOOL PERFORMANCE, AND ACADEMIC ENGAGEMENT.

PubMed

Staff, Jeremy; Schulenberg, John E; Bachman, Jerald G

2010-07-01

Teenagers working over 20 hours per week perform worse in school than youth who work less. There are two competing explanations for this association: (1) that paid work takes time and effort away from activities that promote achievement, such as completing homework, preparing for examinations, getting help from parents and teachers, and participating in extracurricular activities; and (2) that the relationship between paid work and school performance is spurious, reflecting preexisting differences between students in academic ability, motivation, and school commitment. Using longitudinal data from the ongoing national Monitoring the Future project, this research examines the impact of teenage employment on school performance and academic engagement during the 8th, 10th, and 12th grades. We address issues of spuriousness by using a two-level hierarchical model to estimate the relationships of within-individual changes in paid work to changes in school performance and other school-related measures. Unlike prior research, we also compare youth school performance and academic orientation when they are actually working in high-intensity jobs to when they are jobless and wish to work intensively. Results indicate that the mere wish for intensive work corresponds with academic difficulties in a manner similar to actual intensive work.

Visual bottle inspection performance in highly paced belt-conveyor systems.

PubMed

Saito, M; Tanaka, T

1977-12-01

The relation between visual work performance and a few variables with immediate effects, i.e, lighting, work speed, work spell, etc. was studied. At the same time, some physiological and behavioral variations obtained in the study were also discussed. Through experiments and surveys, the optimum conditions were found for each variable. Work performance, however, is affected in such a subtle, interactive and dynamic manner that the working conditions are to be adjusted by taking into account not only these variables having immediate effects but also those indirectly relating ones meeting real needs in the practical working fields. Improvement of some physical working conditions, such as lighting, produces only a transitory increase of performance which is very unstable unless other determinants of performance are simultaneously managed in a proper manner. The same applied to arrangement of the optimum work speed and work spell for highly paced visual inspection, variations in rejection rate and in physiological functions interacting with individual and other determinants. In order to maximize understanding of the integrated and synthesized manner of determinants, it is emphasized that work performance must be pursued in a considerably comprehensive framework from a long-term perspective.

ADOLESCENT WORK INTENSITY, SCHOOL PERFORMANCE, AND ACADEMIC ENGAGEMENT*

PubMed Central

Staff, Jeremy; Schulenberg, John E.; Bachman, Jerald G.

2010-01-01

Teenagers working over 20 hours per week perform worse in school than youth who work less. There are two competing explanations for this association: (1) that paid work takes time and effort away from activities that promote achievement, such as completing homework, preparing for examinations, getting help from parents and teachers, and participating in extracurricular activities; and (2) that the relationship between paid work and school performance is spurious, reflecting preexisting differences between students in academic ability, motivation, and school commitment. Using longitudinal data from the ongoing national Monitoring the Future project, this research examines the impact of teenage employment on school performance and academic engagement during the 8th, 10th, and 12th grades. We address issues of spuriousness by using a two-level hierarchical model to estimate the relationships of within-individual changes in paid work to changes in school performance and other school-related measures. Unlike prior research, we also compare youth school performance and academic orientation when they are actually working in high-intensity jobs to when they are jobless and wish to work intensively. Results indicate that the mere wish for intensive work corresponds with academic difficulties in a manner similar to actual intensive work. PMID:20802795

Gait performance is not influenced by working memory when walking at a self-selected pace.

PubMed

Grubaugh, Jordan; Rhea, Christopher K

2014-02-01

Gait performance exhibits patterns within the stride-to-stride variability that can be indexed using detrended fluctuation analysis (DFA). Previous work employing DFA has shown that gait patterns can be influenced by constraints, such as natural aging or disease, and they are informative regarding a person's functional ability. Many activities of daily living require concurrent performance in the cognitive and gait domains; specifically working memory is commonly engaged while walking, which is considered dual-tasking. It is unknown if taxing working memory while walking influences gait performance as assessed by DFA. This study used a dual-tasking paradigm to determine if performance decrements are observed in gait or working memory when performed concurrently. Healthy young participants (N = 16) performed a working memory task (automated operation span task) and a gait task (walking at a self-selected speed on a treadmill) in single- and dual-task conditions. A second dual-task condition (reading while walking) was included to control for visual attention, but also introduced a task that taxed working memory over the long term. All trials involving gait lasted at least 10 min. Performance in the working memory task was indexed using five dependent variables (absolute score, partial score, speed error, accuracy error, and math error), while gait performance was indexed by quantifying the mean, standard deviation, and DFA α of the stride interval time series. Two multivariate analyses of variance (one for gait and one for working memory) were used to examine performance in the single- and dual-task conditions. No differences were observed in any of the gait or working memory dependent variables as a function of task condition. The results suggest the locomotor system is adaptive enough to complete a working memory task without compromising gait performance when walking at a self-selected pace.

The Impact of a Rigorous Multiple Work Shift Schedule and Day Versus Night Shift Work on Reaction Time and Balance Performance in Female Nurses: A Repeated Measures Study.

PubMed

Thompson, Brennan J; Stock, Matt S; Banuelas, Victoria K; Akalonu, Chibuzo C

2016-07-01

The aim of this study was to determine the impact of a demanding work schedule involving long, cumulative work shifts on response time and balance-related performance outcomes and to evaluate the prevalence of musculoskeletal disorders between day and night shift working nurses. A questionnaire was used to identify the prevalence of past (12-month) and current (7-day) musculoskeletal disorders. Nurses worked three 12-hour work shifts in a 4-day period. Reaction time and balance tests were conducted before and after the work period. The work period induced impairments for reaction time, errors on reaction time tasks, and balance performance, independent of shift type. Musculoskeletal symptom prevalence was high in workers of both work shifts. Compressed work shifts caused performance-based fatigue in nurses. Reaction time and balance tests may be sensitive fatigue identification markers in nurses.

Emotional intelligence and job performance: The mediating role of work-family balance.

PubMed

Weinzimmer, Laurence G; Baumann, Heidi M; Gullifor, Daniel P; Koubova, Veronika

2017-01-01

In this study, we examine the dynamics between emotional intelligence, work-family balance, and job performance. A review of the literature to date has shown distinct relationships between emotional intelligence to job performance and work-family balance to job performance. We utilize a sample of 233 respondents to empirically test our set of hypotheses that contend work-family balance mediates the relationship between emotional intelligence and job performance. Our results support these hypotheses. Practical implications and directions for future research are discussed.

7 CFR 1924.6 - Performing development work.

Code of Federal Regulations, 2012 CFR

2012-01-01

.... The letter of credit must remain in effect until the date of final acceptance of work by the owner and... Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS... Performing development work. All construction work will be performed by one, or a combination, of the...

7 CFR 1924.6 - Performing development work.

Code of Federal Regulations, 2014 CFR

2014-01-01

.... The letter of credit must remain in effect until the date of final acceptance of work by the owner and... Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS... Performing development work. All construction work will be performed by one, or a combination, of the...

7 CFR 1924.6 - Performing development work.

Code of Federal Regulations, 2013 CFR

2013-01-01

.... The letter of credit must remain in effect until the date of final acceptance of work by the owner and... Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS... Performing development work. All construction work will be performed by one, or a combination, of the...

14 CFR 151.49 - Performance of construction work: Contract requirements.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Performance of construction work: Contract... § 151.49 Performance of construction work: Contract requirements. (a) Contract provisions. In addition to any other provisions necessary to ensure completion of the work in accordance with the grant...

7 CFR 1948.83 - Performance of site development work.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 7 Agriculture 13 2010-01-01 2009-01-01 true Performance of site development work. 1948.83 Section 1948.83 Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE... Development Assistance Program § 1948.83 Performance of site development work. Site development work will be...

Relations between mental health team characteristics and work role performance.

PubMed

Fleury, Marie-Josée; Grenier, Guy; Bamvita, Jean-Marie; Farand, Lambert

2017-01-01

Effective mental health care requires a high performing, interprofessional team. Among 79 mental health teams in Quebec (Canada), this exploratory study aims to 1) determine the association between work role performance and a wide range of variables related to team effectiveness according to the literature, and to 2) using structural equation modelling, assess the covariance between each of these variables as well as the correlation with other exogenous variables. Work role performance was measured with an adapted version of a work role questionnaire. Various independent variables including team manager characteristics, user characteristics, team profiles, clinical activities, organizational culture, network integration strategies and frequency/satisfaction of interactions with other teams or services were analyzed under the structural equation model. The later provided a good fit with the data. Frequent use of standardized procedures and evaluation tools (e.g. screening and assessment tools for mental health disorders) and team manager seniority exerted the most direct effect on work role performance. While network integration strategies had little effect on work role performance, there was a high covariance between this variable and those directly affecting work role performance among mental health teams. The results suggest that the mental healthcare system should apply standardized procedures and evaluation tools and, to a lesser extent, clinical approaches to improve work role performance in mental health teams. Overall, a more systematic implementation of network integration strategies may contribute to improved work role performance in mental health care.

Relations between mental health team characteristics and work role performance

PubMed Central

Grenier, Guy; Bamvita, Jean-Marie; Farand, Lambert

2017-01-01

Effective mental health care requires a high performing, interprofessional team. Among 79 mental health teams in Quebec (Canada), this exploratory study aims to 1) determine the association between work role performance and a wide range of variables related to team effectiveness according to the literature, and to 2) using structural equation modelling, assess the covariance between each of these variables as well as the correlation with other exogenous variables. Work role performance was measured with an adapted version of a work role questionnaire. Various independent variables including team manager characteristics, user characteristics, team profiles, clinical activities, organizational culture, network integration strategies and frequency/satisfaction of interactions with other teams or services were analyzed under the structural equation model. The later provided a good fit with the data. Frequent use of standardized procedures and evaluation tools (e.g. screening and assessment tools for mental health disorders) and team manager seniority exerted the most direct effect on work role performance. While network integration strategies had little effect on work role performance, there was a high covariance between this variable and those directly affecting work role performance among mental health teams. The results suggest that the mental healthcare system should apply standardized procedures and evaluation tools and, to a lesser extent, clinical approaches to improve work role performance in mental health teams. Overall, a more systematic implementation of network integration strategies may contribute to improved work role performance in mental health care. PMID:28991923

The curvilinear relationship between work pressure and momentary task performance: the role of state and trait core self-evaluations.

PubMed

Hofmans, Joeri; Debusscher, Jonas; Dóci, Edina; Spanouli, Andromachi; De Fruyt, Filip

2015-01-01

Whereas several studies have demonstrated that core self-evaluations (CSE)-or one's appraisals about one's own self-worth, capabilities, and competences-relate to job outcomes, less is known about the mechanisms underlying these relationships. In the present study, we address this issue by examining the role of within- and between-person variation in CSE in the relationship between work pressure and task performance. We hypothesized that (a) work pressure relates to task performance in a curvilinear way, (b) state CSE mediates the curvilinear relationship between work pressure and task performance, and (c) the relationship between work pressure and state CSE is moderated by trait CSE. Our hypotheses were tested via a 10-day daily diary study with 55 employees in which trait CSE was measured at baseline, while work pressure, task performance, and state CSE were assessed on a daily basis. Bayesian multilevel path analysis showed that work pressure affects task performance via state CSE, with state CSE increasing as long as the employee feels that (s)he is able to handle the work pressure, while it decreases when the level of work pressure exceeds the employees' coping abilities. Moreover, we found that for people low on trait CSE, the depleting effect of work pressure via state CSE happens for low levels of work pressure, while for people high in trait CSE the depleting effect is located at high levels of work pressure. Together, our findings suggest that the impact of work pressure on task performance is driven by a complex interplay of between- and within-person differences in CSE.

Effects of a Flexibility/Support Intervention on Work Performance: Evidence From the Work, Family, and Health Network.

PubMed

Bray, Jeremy W; Hinde, Jesse M; Kaiser, David J; Mills, Michael J; Karuntzos, Georgia T; Genadek, Katie R; Kelly, Erin L; Kossek, Ellen E; Hurtado, David A

2018-05-01

To estimate the effects of a workplace initiative to reduce work-family conflict on employee performance. A group-randomized multisite controlled experimental study with longitudinal follow-up. An information technology firm. Employees randomized to the intervention (n = 348) and control condition (n = 345). An intervention, "Start. Transform. Achieve. Results." to enhance employees' control over their work time, to increase supervisors' support for this change, and to increase employees' and supervisors' focus on results. We estimated the effect of the intervention on 9 self-reported employee performance measures using a difference-in-differences approach with generalized linear mixed models. Performance measures included actual and expected hours worked, absenteeism, and presenteeism. This study found little evidence that an intervention targeting work-family conflict affected employee performance. The only significant effect of the intervention was an approximately 1-hour reduction in expected work hours. After Bonferroni correction, the intervention effect is marginally insignificant at 6 months and marginally significant at 12 and 18 months. The intervention reduced expected working time by 1 hour per week; effects on most other employee self-reported performance measures were statistically insignificant. When coupled with the other positive wellness and firm outcomes, this intervention may be useful for improving employee perceptions of increased access to personal time or personal wellness without sacrificing performance. The null effects on performance provide countervailing evidence to recent negative press on work-family and flex work initiatives.

Self-employed individuals performing different types of work have different occupational safety and health problems.

PubMed

Park, Jungsun; Han, Boyoung; Kim, Yangho

2018-05-22

We assessed the occupational safety and health (OSH) issues of self-employed individuals in Korea. The working conditions and OSH issues in three groups were analyzed using the Korean Working Conditions Survey of 2014. Among self-employed individuals, "Physical work" was more common among males, whereas "Emotional work" was more common among females. Self-employed individuals performing "Mental work" had more education, higher incomes, and the lowest exposure to physical/chemical and ergonomic hazards in the workplace. In contrast, those performing "Physical work" were older, had less education, lower incomes, greater exposure to physical/chemical and ergonomic hazards in the workplace, and more health problems. Individuals performing "Physical work" were most vulnerable to OSH problems. The self-employed are a heterogeneous group of individuals. We suggest development of specific strategies that focus on workers performing "Physical work" to improve the health and safety of self-employed workers in Korea. © 2018 Wiley Periodicals, Inc.

Discrepancy of performance among working memory-related tasks in autism spectrum disorders was caused by task characteristics, apart from working memory, which could interfere with task execution.

PubMed

Nakahachi, Takayuki; Iwase, Masao; Takahashi, Hidetoshi; Honaga, Eiko; Sekiyama, Ryuji; Ukai, Satoshi; Ishii, Ryouhei; Ishigami, Wataru; Kajimoto, Osami; Yamashita, Ko; Hashimoto, Ryota; Tanii, Hisashi; Shimizu, Akira; Takeda, Masatoshi

2006-06-01

Working memory performance has been inconsistently reported in autism spectrum disorders (ASD). Several studies in ASD have found normal performance in digit span and poor performance in digit symbol task although these are closely related with working memory. It is assumed that poor performance in digit symbol could be explained by confirmatory behavior, which is induced due to the vague memory representation of number-symbol association. Therefore it was hypothesized that the performance of working memory task, in which vagueness did not cause confirmatory behavior, would be normal in ASD. For this purpose, the Advanced Trail Making Test (ATMT) was used. The performance of digit span, digit symbol and ATMT was compared between ASD and normal control. The digit span, digit symbol and ATMT was given to 16 ASD subjects and 28 IQ-, age- and sex-matched control subjects. The scores of these tasks were compared. A significantly lower score for ASD was found only in digit symbol compared with control subjects. There were no significant difference in digit span and working memory estimated by ATMT. Discrepancy of scores among working memory-related tasks was demonstrated in ASD. Poor digit symbol performance, normal digit span and normal working memory in ATMT implied that ASD subjects would be intact in working memory itself, and that superficial working memory dysfunction might be observed due to confirmatory behavior in digit symbol. Therefore, to evaluate working memory in ASD, tasks that could stimulate psychopathology specific to ASD should be avoided.

Processing efficiency theory in children: working memory as a mediator between trait anxiety and academic performance.

PubMed

Owens, Matthew; Stevenson, Jim; Norgate, Roger; Hadwin, Julie A

2008-10-01

Working memory skills are positively associated with academic performance. In contrast, high levels of trait anxiety are linked with educational underachievement. Based on Eysenck and Calvo's (1992) processing efficiency theory (PET), the present study investigated whether associations between anxiety and educational achievement were mediated via poor working memory performance. Fifty children aged 11-12 years completed verbal (backwards digit span; tapping the phonological store/central executive) and spatial (Corsi blocks; tapping the visuospatial sketchpad/central executive) working memory tasks. Trait anxiety was measured using the State-Trait Anxiety Inventory for Children. Academic performance was assessed using school administered tests of reasoning (Cognitive Abilities Test) and attainment (Standard Assessment Tests). The results showed that the association between trait anxiety and academic performance was significantly mediated by verbal working memory for three of the six academic performance measures (math, quantitative and non-verbal reasoning). Spatial working memory did not significantly mediate the relationship between trait anxiety and academic performance. On average verbal working memory accounted for 51% of the association between trait anxiety and academic performance, while spatial working memory only accounted for 9%. The findings indicate that PET is a useful framework to assess the impact of children's anxiety on educational achievement.

Mechanical work as an indirect measure of subjective costs influencing human movement.

PubMed

Zelik, Karl E; Kuo, Arthur D

2012-01-01

To descend a flight of stairs, would you rather walk or fall? Falling seems to have some obvious disadvantages such as the risk of pain or injury. But the preferred strategy of walking also entails a cost for the use of active muscles to perform negative work. The amount and distribution of work a person chooses to perform may, therefore, reflect a subjective valuation of the trade-offs between active muscle effort and other costs, such as pain. Here we use a simple jump landing experiment to quantify the work humans prefer to perform to dissipate the energy of landing. We found that healthy normal subjects (N = 8) preferred a strategy that involved performing 37% more negative work than minimally necessary (P<0.001) across a range of landing heights. This then required additional positive work to return to standing rest posture, highlighting the cost of this preference. Subjects were also able to modulate the amount of landing work, and its distribution between active and passive tissues. When instructed to land softly, they performed 76% more work than necessary (P<0.001), with a higher proportion from active muscles (89% vs. 84%, P<0.001). Stiff-legged landings, performed by one subject for demonstration, exhibited close to the minimum of work, with more of it performed passively through soft tissue deformations (at least 30% in stiff landings vs. 16% preferred). During jump landings, humans appear not to minimize muscle work, but instead choose to perform a consistent amount of extra work, presumably to avoid other subjective costs. The degree to which work is not minimized may indirectly quantify the relative valuation of costs that are otherwise difficult to measure.

Impact of mental disorders on work performance in a community sample of workers in Japan: the World Mental Health Japan Survey 2002-2005.

PubMed

Tsuchiya, Masao; Kawakami, Norito; Ono, Yutaka; Nakane, Yoshibumi; Nakamura, Yosikazu; Fukao, Akira; Tachimori, Hisateru; Iwata, Noboru; Uda, Hidenori; Nakane, Hideyuki; Watanabe, Makoto; Oorui, Masashi; Naganuma, Yoichi; Furukawa, Toshiaki A; Kobayashi, Masayo; Ahiko, Tadayuki; Takeshima, Tadashi; Kikkawa, Takehiko

2012-06-30

Most studies that investigate the impact of mental disorders on work performance have been conducted in Western countries, but this study examines the impact of common mental disorders on sick leave and on-the-job work performance in a community sample of Japanese workers. Data from the World Mental Health Japan survey were analyzed. A subsample of 530 workers aged 20-60years were interviewed using the WHO Composite International Diagnostic Interview 3.0. The WHO Health and Work Performance Questionnaire, was used to assess sick days and on-the-job work performance for the previous 30days. Linear regression was used to estimate the impact of mental disorders on these indicators of work performance over 12months. Mood disorders, including major depressive disorder, and alcohol abuse/dependence were significantly associated with decreased on-the-job performance. There were no significant associations between mental disorders and sick/absent days. Consistent with previous studies, major depression has a great impact on on-the-job work performance in Japan. The lost productivity was estimated at approximately 28-30 lost days per year. A similar decrease in on-the-job work performance was found for alcohol abuse/dependence, which is stronger than that in other countries, probably attributable to greater tolerance of problematic drinking at Japanese worksites. Copyright © 2012 Elsevier Ltd. All rights reserved.

Relationship of impaired processing speed and flexibility of abstract thought to improvements in work performance over time in schizophrenia.

PubMed

Lysaker, Paul H; Bryson, Gary J; Davis, Louanne W; Bell, Morris D

2005-06-15

Vocational impairments in schizophrenia have been widely linked to deficits in neurocognition. This study examined the possibility that deficits in visuomotor processing speed and flexibility in abstract thought may in combination be an especially potent risk factor for poorer levels of work performance in rehabilitation. Fifty-seven participants with confirmed diagnoses of schizophrenia spectrum disorders were administered the Digit Symbol Subtest and the Wisconsin Card Sorting Test and then offered work placements in a vocational rehabilitation program. Work performance was assessed biweekly over two months using the Work Behavior Inventory. Multivariate and univariate repeated ANOVA revealed that participants classified as having no impairments in either visuomotor processing speed and flexibility in abstract thought (n=14) had superior work performance compared to participants with deficits in either one area (n=20) or both areas (n=23). Additionally, participants with no impairments were the only group to show significant improvement in work performance over 7 weeks of rehabilitation. Participants with only one deficit had significantly better work performance than participants with both deficits but showed no statistically significant improvement in work performance. Results suggest assessments of these domains of neurocognition may provide important information about individual needs for adjunct services.

Impact of Previous Pharmacy Work Experience on Pharmacy School Academic Performance

PubMed Central

Mar, Ellena; T-L Tang, Terrill; Sasaki-Hill, Debra; Kuperberg, James R.; Knapp, Katherine

2010-01-01

Objectives To determine whether students' previous pharmacy-related work experience was associated with their pharmacy school performance (academic and clinical). Methods The following measures of student academic performance were examined: pharmacy grade point average (GPA), scores on cumulative high-stakes examinations, and advanced pharmacy practice experience (APPE) grades. The quantity and type of pharmacy-related work experience each student performed prior to matriculation was solicited through a student survey instrument. Survey responses were correlated with academic measures, and demographic-based stratified analyses were conducted. Results No significant difference in academic or clinical performance between those students with prior pharmacy experience and those without was identified. Subanalyses by work setting, position type, and substantial pharmacy work experience did not reveal any association with student performance. A relationship was found, however, between age and work experience, ie, older students tended to have more work experience than younger students. Conclusions Prior pharmacy work experience did not affect students' overall academic or clinical performance in pharmacy school. The lack of significant findings may have been due to the inherent practice limitations of nonpharmacist positions, changes in pharmacy education, and the limitations of survey responses. PMID:20498735

The influence of perceived stress and musculoskeletal pain on work performance and work ability in Swedish health care workers.

PubMed

Lindegård, A; Larsman, P; Hadzibajramovic, E; Ahlborg, G

2014-05-01

To evaluate the influence of perceived stress and musculoskeletal ache/pain, separately and in combination, at baseline, on self-rated work ability and work performance at two-year follow-up. Survey data were collected with a 2-year interval. Health care workers participating at both waves were included. Inclusion criteria were good self-reported work ability and unchanged self-rated work performance at baseline, resulting in 770 participants; 617 women and 153 men. Musculoskeletal pain was assessed using the question "How often do you experience pain in joints and muscles, including the neck and low back?", perceived stress with a modified version of a single item from the QPS-Nordic questionnaire, work performance by the question "Have your work performance changed during the preceding 12 months?" and work ability by a single item from the work ability index. Associations between baseline data and the two outcomes at follow-up were analysed by means of the log binomial model and expressed as risk ratios (RR) with 95% confidence intervals (CI). A combination of frequent musculoskeletal pain and perceived stress constituted the highest risk for reporting decreased work performance (RR 1.7; CI 1.28-2.32) and reduced work ability (RR 1.7; CI 1.27-2.30) at follow-up. Separately, frequent pain, but not stress, was clearly associated with both outcomes. The results imply that proactive workplace interventions in order to maintain high work performance and good work ability should include measures to promote musculoskeletal well-being for the employees and measures, both individual and organizational, to minimize the risk of persistent stress reactions.

29 CFR 541.700 - Primary duty.

Code of Federal Regulations, 2010 CFR

2010-07-01

... other types of duties; the amount of time spent performing exempt work; the employee's relative freedom... employees for the kind of nonexempt work performed by the employee. (b) The amount of time spent performing.... Thus, employees who spend more than 50 percent of their time performing exempt work will generally...

Working-memory performance is related to spatial breadth of attention.

PubMed

Kreitz, Carina; Furley, Philip; Memmert, Daniel; Simons, Daniel J

2015-11-01

Working memory and attention are closely related constructs. Models of working memory often incorporate an attention component, and some even equate working memory and attentional control. Although some attention-related processes, including inhibitory control of response conflict and interference resolution, are strongly associated with working memory, for other aspects of attention the link is less clear. We examined the association between working-memory performance and attentional breadth, the ability to spread attention spatially. If the link between attention and working memory is broader than inhibitory and interference resolution processes, then working-memory performance might also be associated with other attentional abilities, including attentional breadth. We tested 123 participants on a variety of working-memory and attentional-breadth measures, finding a strong correlation between performances on these two types of tasks. This finding demonstrates that the link between working memory and attention extends beyond inhibitory processes.

5 CFR 551.424 - Time spent adjusting grievances or performing representational functions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... hours of work. This includes time spent by an employee performing such functions during regular working... MANAGEMENT CIVIL SERVICE REGULATIONS PAY ADMINISTRATION UNDER THE FAIR LABOR STANDARDS ACT Hours of Work... shall be considered hours of work. (b) “Official time” granted an employee by an agency to perform...

14 CFR 151.47 - Performance of construction work: Letting of contracts.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Performance of construction work: Letting... Development Projects § 151.47 Performance of construction work: Letting of contracts. (a) Advertising required... project, each contract for construction work on a project in the amount of more than $2,000 must be...

14 CFR 151.47 - Performance of construction work: Letting of contracts.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Performance of construction work: Letting... Development Projects § 151.47 Performance of construction work: Letting of contracts. (a) Advertising required... project, each contract for construction work on a project in the amount of more than $2,000 must be...

14 CFR 151.47 - Performance of construction work: Letting of contracts.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Performance of construction work: Letting... Development Projects § 151.47 Performance of construction work: Letting of contracts. (a) Advertising required... project, each contract for construction work on a project in the amount of more than $2,000 must be...

14 CFR 151.47 - Performance of construction work: Letting of contracts.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Performance of construction work: Letting... Development Projects § 151.47 Performance of construction work: Letting of contracts. (a) Advertising required... project, each contract for construction work on a project in the amount of more than $2,000 must be...

An Empirical Examination of the Mechanisms Mediating between High-Performance Work Systems and the Performance of Japanese Organizations

ERIC Educational Resources Information Center

Takeuchi, Riki; Lepak, David P.; Wang, Heli; Takeuchi, Kazuo

2007-01-01

The resource-based view of the firm and social exchange perspectives are invoked to hypothesize linkages among high-performance work systems, collective human capital, the degree of social exchange in an establishment, and establishment performance. The authors argue that high-performance work systems generate a high level of collective human…

Sequential bilateral cochlear implantation improves working performance, quality of life, and quality of hearing.

PubMed

Härkönen, Kati; Kivekäs, Ilkka; Rautiainen, Markus; Kotti, Voitto; Sivonen, Ville; Vasama, Juha-Pekka

2015-05-01

This prospective study shows that working performance, quality of life (QoL), and quality of hearing (QoH) are better with two compared with a single cochlear implant (CI). The impact of the second CI on the patient's QoL is as significant as the impact of the first CI. To evaluate the benefits of sequential bilateral cochlear implantation in working, QoL, and QoH. We studied working performance, work-related stress, QoL, and QoH with specific questionnaires in 15 patients with unilateral CI scheduled for sequential CI of another ear. Sound localization performance and speech perception in noise were measured with specific tests. All questionnaires and tests were performed before the second CI surgery and 6 and 12 months after its activation. Bilateral CIs increased patients' working performance and their work-related stress and fatigue decreased. Communication with co-workers was easier and patients were more active in their working environment. Sequential bilateral cochlear implantation improved QoL, QoH, sound localization, and speech perception in noise statistically significantly.

The effects of working memory on brain-computer interface performance.

PubMed

Sprague, Samantha A; McBee, Matthew T; Sellers, Eric W

2016-02-01

The purpose of the present study is to evaluate the relationship between working memory and BCI performance. Participants took part in two separate sessions. The first session consisted of three computerized tasks. The List Sorting Working Memory Task was used to measure working memory, the Picture Vocabulary Test was used to measure general intelligence, and the Dimensional Change Card Sort Test was used to measure executive function, specifically cognitive flexibility. The second session consisted of a P300-based BCI copy-spelling task. The results indicate that both working memory and general intelligence are significant predictors of BCI performance. This suggests that working memory training could be used to improve performance on a BCI task. Working memory training may help to reduce a portion of the individual differences that exist in BCI performance allowing for a wider range of users to successfully operate the BCI system as well as increase the BCI performance of current users. Copyright © 2015 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.

Analysis of situation of rural women in the Lublin Region from the aspect of loading with work.

PubMed

Pawlak, Halina; Maniak, Barbara; Petkowicz, Beata; Kuna-Broniowska, Izabela; Petkowicz, Jacek; Buczaj, Agnieszka

2013-01-01

The objective of the study was recognition of rural women's opinions concerning the degree of heaviness of work activities performed and obtaining the answer to the question: What is the actual level of loading rural women with work? The basic research instrument was a questionnaire form. A representative group of women aged 40-50 were selected for the study because this group had the most complete family structure. The study was conducted among rural women living in the commune of Zwierzyniec. Family size and multi-generationality were analyzed, as well as family members' assistance in household and field activities. The type of work performed was analyzed with consideration of the duration of work and body position while performing this work. Self-reported degree of loading with work on a farm was analyzed, and effective energy expenditure calculated for individual work activities performed by women, based on which the actual degree of loading with work was determined. The respondents generally perceived their loading with work as low. They considered household jobs as not loading with or not exerting any effect on their fatigue and state of health. A very weak statistical relationship was observed between the duration of loading with household jobs and the perceived degree of loading with this work. The Kołmogorov-Smirnov test showed that the evaluations expressed by women concerning the degree of loading with household chores did not depend on time devoted to these work activities. The majority of women similarly evaluated work load, irrespective of the actual degree of loading. Work activities performed in a household were classified according to work load as heavy, medium-heavy and mediocre. Subjective evaluations of work load by rural women considerably differed from the assessment performed using the work time schedule method.

46 CFR Sec. 17 - Performance of work resulting from damage sustained while undergoing repairs.

Code of Federal Regulations, 2011 CFR

2011-10-01

... SHIPPING AUTHORITY MASTER LUMP SUM REPAIR CONTRACT-NSA-LUMPSUMREP Sec. 17 Performance of work resulting... performance of repairs under the NSA Master Contract, negotiations for accomplishment of work necessary to...

46 CFR Sec. 17 - Performance of work resulting from damage sustained while undergoing repairs.

Code of Federal Regulations, 2010 CFR

2010-10-01

... SHIPPING AUTHORITY MASTER LUMP SUM REPAIR CONTRACT-NSA-LUMPSUMREP Sec. 17 Performance of work resulting... performance of repairs under the NSA Master Contract, negotiations for accomplishment of work necessary to...

46 CFR Sec. 17 - Performance of work resulting from damage sustained while undergoing repairs.

Code of Federal Regulations, 2013 CFR

2013-10-01

... SHIPPING AUTHORITY MASTER LUMP SUM REPAIR CONTRACT-NSA-LUMPSUMREP Sec. 17 Performance of work resulting... performance of repairs under the NSA Master Contract, negotiations for accomplishment of work necessary to...

46 CFR Sec. 17 - Performance of work resulting from damage sustained while undergoing repairs.

Code of Federal Regulations, 2012 CFR

2012-10-01

... SHIPPING AUTHORITY MASTER LUMP SUM REPAIR CONTRACT-NSA-LUMPSUMREP Sec. 17 Performance of work resulting... performance of repairs under the NSA Master Contract, negotiations for accomplishment of work necessary to...

46 CFR Sec. 17 - Performance of work resulting from damage sustained while undergoing repairs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... SHIPPING AUTHORITY MASTER LUMP SUM REPAIR CONTRACT-NSA-LUMPSUMREP Sec. 17 Performance of work resulting... performance of repairs under the NSA Master Contract, negotiations for accomplishment of work necessary to...

Work support, psychological well-being and safety performance among nurses in Hong Kong.

PubMed

Wong, Kenchi C K

2018-02-06

This study investigated the mediating role of psychological well-being between work support and safety performance of 314 Hong Kong nurses, using self-reported questionnaires. Results showed that psychological well-being mediated the effects of work support on safety performance. The findings illustrate that work support was an important element to improve psychological well-being. This could generate better safety performance of the nurses. Implications and limitations are discussed.

The Effects of Working Memory on Brain-Computer Interface Performance

PubMed Central

Sprague, Samantha A.; McBee, Matthew; Sellers, Eric W.

2015-01-01

Objective The purpose of the present study is to evaluate the relationship between working memory and BCI performance. Methods Participants took part in two separate sessions. The first session consisted of three computerized tasks. The LSWM was used to measure working memory, the TPVT was used to measure general intelligence, and the DCCS was used to measure executive function, specifically cognitive flexibility. The second session consisted of a P300-based BCI copy-spelling task. Results The results indicate that both working memory and general intelligence are significant predictors of BCI performance. Conclusions This suggests that working memory training could be used to improve performance on a BCI task. Significance Working memory training may help to reduce a portion of the individual differences that exist in BCI performance allowing for a wider range of users to successfully operate the BCI system as well as increase the BCI performance of current users. PMID:26620822

The effects of extended work under sleep deprivation conditions on team-based performance.

PubMed

Pilcher, June J; Vander Wood, Melissa A; O'Connell, Kristina L

2011-07-01

Teamwork is becoming increasingly common in today's workplaces; however, little research has examined how well teams perform under sleep deprivation conditions. The purpose of the current study was to examine the effect of extended work under sleep deprivation conditions on team performance. A total of 24 participants were sleep deprived for 30 h and completed 16 h of sustained operations during the last portion of the sleep deprivation period. The participants completed the Wombat, a complex task including vigilance and cognitive components, with a partner in four 24-min testing sessions during the sustained operations period. The results indicated that team performance increased during the work period while, within each testing session, team performance on vigilance tasks remained stable and overall performance decreased. The current results suggest that performance on two-person teams results in improved performance but does not fully counteract the decreases in performance within each work period. Performance in two-person teams increased across an extended work shift under sleep deprivation conditions. However, vigilance performance remained stable while overall performance decreased when examining performance in 8-min segments. These results suggest that averaging team-based performance over a longer testing period may mask the negative effects of sleep deprivation. STATEMENT OF RELEVANCE: Performance in two-person teams increased across an extended work shift under sleep deprivation conditions. However, vigilance performance remained stable while overall performance decreased when examining performance in 8-min segments. These results suggest that averaging team-based performance over a longer testing period may mask the negative effects of sleep deprivation.

Work domain constraints for modelling surgical performance.

PubMed

Morineau, Thierry; Riffaud, Laurent; Morandi, Xavier; Villain, Jonathan; Jannin, Pierre

2015-10-01

Three main approaches can be identified for modelling surgical performance: a competency-based approach, a task-based approach, both largely explored in the literature, and a less known work domain-based approach. The work domain-based approach first describes the work domain properties that constrain the agent's actions and shape the performance. This paper presents a work domain-based approach for modelling performance during cervical spine surgery, based on the idea that anatomical structures delineate the surgical performance. This model was evaluated through an analysis of junior and senior surgeons' actions. Twenty-four cervical spine surgeries performed by two junior and two senior surgeons were recorded in real time by an expert surgeon. According to a work domain-based model describing an optimal progression through anatomical structures, the degree of adjustment of each surgical procedure to a statistical polynomial function was assessed. Each surgical procedure showed a significant suitability with the model and regression coefficient values around 0.9. However, the surgeries performed by senior surgeons fitted this model significantly better than those performed by junior surgeons. Analysis of the relative frequencies of actions on anatomical structures showed that some specific anatomical structures discriminate senior from junior performances. The work domain-based modelling approach can provide an overall statistical indicator of surgical performance, but in particular, it can highlight specific points of interest among anatomical structures that the surgeons dwelled on according to their level of expertise.

The curvilinear relationship between work pressure and momentary task performance: the role of state and trait core self-evaluations

PubMed Central

Hofmans, Joeri; Debusscher, Jonas; Dóci, Edina; Spanouli, Andromachi; De Fruyt, Filip

2015-01-01

Whereas several studies have demonstrated that core self-evaluations (CSE)–or one’s appraisals about one’s own self-worth, capabilities, and competences–relate to job outcomes, less is known about the mechanisms underlying these relationships. In the present study, we address this issue by examining the role of within- and between-person variation in CSE in the relationship between work pressure and task performance. We hypothesized that (a) work pressure relates to task performance in a curvilinear way, (b) state CSE mediates the curvilinear relationship between work pressure and task performance, and (c) the relationship between work pressure and state CSE is moderated by trait CSE. Our hypotheses were tested via a 10-day daily diary study with 55 employees in which trait CSE was measured at baseline, while work pressure, task performance, and state CSE were assessed on a daily basis. Bayesian multilevel path analysis showed that work pressure affects task performance via state CSE, with state CSE increasing as long as the employee feels that (s)he is able to handle the work pressure, while it decreases when the level of work pressure exceeds the employees’ coping abilities. Moreover, we found that for people low on trait CSE, the depleting effect of work pressure via state CSE happens for low levels of work pressure, while for people high in trait CSE the depleting effect is located at high levels of work pressure. Together, our findings suggest that the impact of work pressure on task performance is driven by a complex interplay of between- and within-person differences in CSE. PMID:26579053

Trouble Sleeping Associated with Lower Work Performance and Greater Healthcare Costs: Longitudinal Data from Kansas State Employee Wellness Program

PubMed Central

Hui, Siu-kuen Azor; Grandner, Michael A.

2015-01-01

Objective To examine the relationships between employees’ trouble sleeping and absenteeism, work performance, and healthcare expenditures over a two year period. Methods Utilizing the Kansas State employee wellness program (EWP) dataset from 2008–2009, multinomial logistic regression analyses were conducted with trouble sleeping as the predictor and absenteeism, work performance, and healthcare costs as the outcomes. Results EWP participants (N=11,698 in 2008; 5,636 followed up in 2009) who had higher levels of sleep disturbance were more likely to be absent from work (all p < 0.0005), have lower work performance ratings (all p < 0.0005), and have higher healthcare costs (p < 0.0005). Longitudinally, more trouble sleeping was significantly related to negative changes in all outcomes. Conclusions Employees’ trouble sleeping, even at a sub-clinical level, negatively impacts on work attendance, work performance, and healthcare costs. PMID:26461857

Trouble Sleeping Associated With Lower Work Performance and Greater Health Care Costs: Longitudinal Data From Kansas State Employee Wellness Program.

PubMed

Hui, Siu-kuen Azor; Grandner, Michael A

2015-10-01

To examine the relationships between employees' trouble sleeping and absenteeism, work performance, and health care expenditures over a 2-year period. Utilizing the Kansas State employee wellness program (EWP) data set from 2008 to 2009, multinomial logistic regression analyses were conducted with trouble sleeping as the predictor and absenteeism, work performance, and health care costs as the outcomes. EWP participants (N = 11,698 in 2008; 5636 followed up in 2009) who had higher levels of sleep disturbance were more likely to be absent from work (all P < 0.0005), have lower work performance ratings (all P < 0.0005), and have higher health care costs (P < 0.0005). Longitudinally, more trouble sleeping was significantly related to negative changes in all outcomes. Employees' trouble sleeping, even at a subclinical level, negatively impacts on work attendance, work performance, and health care costs.

Personal vulnerability and work-home interaction: the effect of job performance-based self-esteem on work/home conflict and facilitation.

PubMed

Innstrand, Siw Tone; Langballe, Ellen Melbye; Espnes, Geir Arild; Aasland, Olaf Gjerløw; Falkum, Erik

2010-12-01

The aim of the present study was to examine the longitudinal relationship between job performance-based self-esteem (JPB-SE) and work-home interaction (WHI) in terms of the direction of the interaction (work-to-home vs. home-to-work) and the effect (conflict vs. facilitation). A sample of 3,475 respondents from eight different occupational groups (lawyers, physicians, nurses, teachers, church ministers, bus drivers, and people working in advertising and information technology) supplied data at two points of time with a two-year time interval. The two-wave, cross-lagged structural equations modeling (SEM) analysis demonstrated reciprocal relationships between these variables, i.e., job performance-based self-esteem may act as a precursor as well as an outcome of work-home interaction. The strongest association was between job performance-based self-esteem and work-to-home conflict. Previous research on work-home interaction has mainly focused on situational factors. This longitudinal study expands the work-home literature by demonstrating how individual vulnerability (job performance-based self-esteem) contributes to the explanation of work-home interactions. © 2010 The Authors. Scandinavian Journal of Psychology © 2010 The Scandinavian Psychological Associations.

Development of Rasch-based item banks for the assessment of work performance in patients with musculoskeletal diseases.

PubMed

Mueller, Evelyn A; Bengel, Juergen; Wirtz, Markus A

2013-12-01

This study aimed to develop a self-description assessment instrument to measure work performance in patients with musculoskeletal diseases. In terms of the International Classification of Functioning, Disability and Health (ICF), work performance is defined as the degree of meeting the work demands (activities) at the actual workplace (environment). To account for the fact that work performance depends on the work demands of the job, we strived to develop item banks that allow a flexible use of item subgroups depending on the specific work demands of the patients' jobs. Item development included the collection of work tasks from literature and content validation through expert surveys and patient interviews. The resulting 122 items were answered by 621 patients with musculoskeletal diseases. Exploratory factor analysis to ascertain dimensionality and Rasch analysis (partial credit model) for each of the resulting dimensions were performed. Exploratory factor analysis resulted in four dimensions, and subsequent Rasch analysis led to the following item banks: 'impaired productivity' (15 items), 'impaired cognitive performance' (18), 'impaired coping with stress' (13) and 'impaired physical performance' (low physical workload 20 items, high physical workload 10 items). The item banks exhibited person separation indices (reliability) between 0.89 and 0.96. The assessment of work performance adds the activities component to the more commonly employed participation component of the ICF-model. The four item banks can be adapted to specific jobs where necessary without losing comparability of person measures, as the item banks are based on Rasch analysis.

Work zone performance measures pilot test.

DOT National Transportation Integrated Search

2011-04-01

Currently, a well-defined and validated set of metrics to use in monitoring work zone performance do not : exist. This pilot test was conducted to assist state DOTs in identifying what work zone performance : measures can and should be targeted, what...

Objective Work-Nonwork Conflict: From Incompatible Demands to Decreased Work Role Performance

ERIC Educational Resources Information Center

Haun, Sascha; Steinmetz, Holger; Dormann, Christian

2011-01-01

Research on work-nonwork conflict (WNC) is based on the assumption that incompatible demands from the work and the nonwork domain hamper role performance. This assumption implies that role demands from both domains interact in predicting role performance, but research has been largely limited to main effects. In this multi-source study, we analyze…

32 CFR 644.462 - Performance of restoration work by district engineer-extension of time.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 4 2010-07-01 2010-07-01 true Performance of restoration work by district... Leasehold Improvements § 644.462 Performance of restoration work by district engineer—extension of time. Where the lessor will not accept a cash settlement in lieu of restoration, or desires the work to be...

Youth Work, Performativity and the New Youth Impact Agenda: Getting Paid for Numbers?

ERIC Educational Resources Information Center

de St Croix, Tania

2018-01-01

A growing policy emphasis on measurement and outcomes has led to cultures of performativity, which are transforming what educators do and how they feel about themselves in relation to their work. While most analysis of performativity in education has focused on schools, this article investigates parallel developments in youth work. Youth work is a…

Bike Desks in the Office: Physical Health, Cognitive Function, Work Engagement, and Work Performance.

PubMed

Torbeyns, Tine; de Geus, Bas; Bailey, Stephen; De Pauw, Kevin; Decroix, Lieselot; Van Cutsem, Jeroen; Meeusen, Romain

2016-12-01

The aim of this study was to examine the longitudinal effect of implementing bike desks in an office setting on physical health, cognition, and work parameters. Physical health, cognitive function, work engagement, and work performance measured before (T0) and after (T2) the intervention period were compared between office workers who used the bike desk (IG, n = 22) and those who did not (CG, n = 16). The IG cycled approximately 98 minutes/week. The IG showed a significantly lower fat percentage and a trend toward a higher work engagement at T2 relative to T0, while this was not different for the CG. No effects on other parameters of health, cognition, or work performance were found. Providing bike desks in the office positively influences employees' fat percentage and could positively influence work engagement without compromising work performance.

Mental Imagery and Visual Working Memory

PubMed Central

Keogh, Rebecca; Pearson, Joel

2011-01-01

Visual working memory provides an essential link between past and future events. Despite recent efforts, capacity limits, their genesis and the underlying neural structures of visual working memory remain unclear. Here we show that performance in visual working memory - but not iconic visual memory - can be predicted by the strength of mental imagery as assessed with binocular rivalry in a given individual. In addition, for individuals with strong imagery, modulating the background luminance diminished performance on visual working memory and imagery tasks, but not working memory for number strings. This suggests that luminance signals were disrupting sensory-based imagery mechanisms and not a general working memory system. Individuals with poor imagery still performed above chance in the visual working memory task, but their performance was not affected by the background luminance, suggesting a dichotomy in strategies for visual working memory: individuals with strong mental imagery rely on sensory-based imagery to support mnemonic performance, while those with poor imagery rely on different strategies. These findings could help reconcile current controversy regarding the mechanism and location of visual mnemonic storage. PMID:22195024

Mental imagery and visual working memory.

PubMed

Keogh, Rebecca; Pearson, Joel

2011-01-01

Visual working memory provides an essential link between past and future events. Despite recent efforts, capacity limits, their genesis and the underlying neural structures of visual working memory remain unclear. Here we show that performance in visual working memory--but not iconic visual memory--can be predicted by the strength of mental imagery as assessed with binocular rivalry in a given individual. In addition, for individuals with strong imagery, modulating the background luminance diminished performance on visual working memory and imagery tasks, but not working memory for number strings. This suggests that luminance signals were disrupting sensory-based imagery mechanisms and not a general working memory system. Individuals with poor imagery still performed above chance in the visual working memory task, but their performance was not affected by the background luminance, suggesting a dichotomy in strategies for visual working memory: individuals with strong mental imagery rely on sensory-based imagery to support mnemonic performance, while those with poor imagery rely on different strategies. These findings could help reconcile current controversy regarding the mechanism and location of visual mnemonic storage.

Proposal for an Evaluation Method for the Performance of Work Procedures.

PubMed

Mohammed, Mouda; Mébarek, Djebabra; Wafa, Boulagouas; Makhlouf, Chati

2016-12-01

Noncompliance of operators with work procedures is a recurrent problem. This human behavior has been said to be situational and studied by many different approaches (ergonomic and others), which consider the noncompliance with work procedures to be obvious and seek to analyze its causes as well as consequences. The object of the proposed method is to solve this problem by focusing on the performance of work procedures and ensuring improved performance on a continuous basis. This study has multiple results: (1) assessment of the work procedures' performance by a multicriteria approach; (2) the use of a continuous improvement approach as a framework for the sustainability of the assessment method of work procedures' performance; and (3) adaptation of the Stop-Card as a facilitator support for continuous improvement of work procedures. The proposed method emphasizes to put in value the inputs of continuous improvement of the work procedures in relation with the conventional approaches which adopt the obvious evidence of the noncompliance to the working procedures and seek to analyze the cause-effect relationships related to this unacceptable phenomenon, especially in strategic industry.

The Meaning of Work and Performance-Focused Work Attitudes among Midlevel Managers in the United States and Brazil

ERIC Educational Resources Information Center

Kuchinke, K. Peter; Cornachione, Edgard B., Jr.

2010-01-01

This survey-based study investigated work meaning and performance-focused work attitudes of some 315 midlevel managers in diverse industries in the United States and Brazil to determine similarities, differences, and relationships among absolute and relative meaning of work, work role identification, desired work outcomes, and job satisfaction,…

Daily micro-breaks and job performance: General work engagement as a cross-level moderator.

PubMed

Kim, Sooyeol; Park, YoungAh; Headrick, Lucille

2018-03-29

Despite the growing research on work recovery and its well-being outcomes, surprisingly little attention has been paid to at-work recovery and its job performance outcomes. The current study extends the work recovery literature by examining day-level relationships between prototypical microbreaks and job performance as mediated by state positive affect. Furthermore, general work engagement is tested as a cross-level moderator weakening the indirect effects of microbreaks on job performance via positive affect. Using multisource experience sampling method, the authors collected two daily surveys from 71 call center employees and obtained objective records of daily sales performance for two consecutive weeks (n = 632). Multilevel path analysis results showed that relaxation, socialization, and cognitive microbreaks were related to increased positive affect at work which, in turn, predicted greater sales performance. However, breaks for nutrition-intake (having snacks and drinks) did not show significant effects. Importantly, microbreaks had significant indirect effects on job performance via positive affect only for workers who had lower general work engagement, whereas the indirect effects did not exist for workers who had higher general work engagement. Furthermore, Bayesian multilevel analyses confirmed the results. Theoretical and practical implications, limitations, and future research directions are discussed. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

48 CFR 970.1100-1 - Performance-based contracting.

Code of Federal Regulations, 2012 CFR

2012-10-01

... methods of accomplishing the work; use measurable (i.e., terms of quality, timeliness, quantity) performance standards and objectives and quality assurance surveillance plans; provide performance incentives... work and other documents used to establish work requirements. (d) Quality assurance surveillance plans...

48 CFR 970.1100-1 - Performance-based contracting.

Code of Federal Regulations, 2014 CFR

2014-10-01

... methods of accomplishing the work; use measurable (i.e., terms of quality, timeliness, quantity) performance standards and objectives and quality assurance surveillance plans; provide performance incentives... work and other documents used to establish work requirements. (d) Quality assurance surveillance plans...

48 CFR 970.1100-1 - Performance-based contracting.

Code of Federal Regulations, 2013 CFR

2013-10-01

... methods of accomplishing the work; use measurable (i.e., terms of quality, timeliness, quantity) performance standards and objectives and quality assurance surveillance plans; provide performance incentives... work and other documents used to establish work requirements. (d) Quality assurance surveillance plans...

Soft tissues store and return mechanical energy in human running.

PubMed

Riddick, R C; Kuo, A D

2016-02-08

During human running, softer parts of the body may deform under load and dissipate mechanical energy. Although tissues such as the heel pad have been characterized individually, the aggregate work performed by all soft tissues during running is unknown. We therefore estimated the work performed by soft tissues (N=8 healthy adults) at running speeds ranging 2-5 m s(-1), computed as the difference between joint work performed on rigid segments, and whole-body estimates of work performed on the (non-rigid) body center of mass (COM) and peripheral to the COM. Soft tissues performed aggregate negative work, with magnitude increasing linearly with speed. The amount was about -19 J per stance phase at a nominal 3 m s(-1), accounting for more than 25% of stance phase negative work performed by the entire body. Fluctuations in soft tissue mechanical power over time resembled a damped oscillation starting at ground contact, with peak negative power comparable to that for the knee joint (about -500 W). Even the positive work from soft tissue rebound was significant, about 13 J per stance phase (about 17% of the positive work of the entire body). Assuming that the net dissipative work is offset by an equal amount of active, positive muscle work performed at 25% efficiency, soft tissue dissipation could account for about 29% of the net metabolic expenditure for running at 5 m s(-1). During running, soft tissue deformations dissipate mechanical energy that must be offset by active muscle work at non-negligible metabolic cost. Copyright © 2016 Elsevier Ltd. All rights reserved.

"Brothers Gonna Work It Out:" Understanding the Pedagogic Performance of African American Male Teachers Working with African American Male Students

ERIC Educational Resources Information Center

Brown, Anthony L.

2009-01-01

Drawing from ethnographic data, this paper explores how African American male teachers working with African American male students performed their pedagogy. This paper highlights how teachers' understanding of African American males social and educational needs shaped their pedagogical performance. Interestingly however, teachers' performance was…

Flight Attendant Fatigue Recommendation 2: Flight Attendant Work/Rest Patterns, Alertness, and Performance Assessment

DTIC Science & Technology

2010-12-01

Recommendation II: Flight Attendant Work/Rest Patterns, Alertness, and Performance Assessment DOT/FAA/AM-10/22 Office of Aerospace Medicine Washington, DC...Recipient’s Catalog No. DOT/FAA/AM-10/22 4. Title and Subtitle 5. Report Date December 2010 6. Performing Organization Code Flight...Attendant Fatigue Recommendation II: Flight Attendant Work/Rest Patterns, Alertness, and Performance Assessment 7. Author(s) 8. Performing

Work Redesign and the Job Characteristics Model: A Longitudinal Field Study.

DTIC Science & Technology

1982-01-01

prior to and following work redesign. Their general job satisfaction , internal work motivation, job performance , conduct, and absenteeism, as well as...increase employee job satisfaction and internal work motivation and improve conduct and job performance , (2) the diagnostic phase is the most essential part...Strength on the Job Performance -Job Satisfaction Relationship . ....... . 117 Summary ....... .................. 119 4. RESEARCH METHODS

Confident failures: Lapses of working memory reveal a metacognitive blind spot.

PubMed

Adam, Kirsten C S; Vogel, Edward K

2017-07-01

Working memory performance fluctuates dramatically from trial to trial. On many trials, performance is no better than chance. Here, we assessed participants' awareness of working memory failures. We used a whole-report visual working memory task to quantify both trial-by-trial performance and trial-by-trial subjective ratings of inattention to the task. In Experiment 1 (N = 41), participants were probed for task-unrelated thoughts immediately following 20% of trials. In Experiment 2 (N = 30), participants gave a rating of their attentional state following 25% of trials. Finally, in Experiments 3a (N = 44) and 3b (N = 34), participants reported confidence of every response using a simple mouse-click judgment. Attention-state ratings and off-task thoughts predicted the number of items correctly identified on each trial, replicating previous findings that subjective measures of attention state predict working memory performance. However, participants correctly identified failures on only around 28% of failure trials. Across experiments, participants' metacognitive judgments reliably predicted variation in working memory performance but consistently and severely underestimated the extent of failures. Further, individual differences in metacognitive accuracy correlated with overall working memory performance, suggesting that metacognitive monitoring may be key to working memory success.

Organizational work-family resources as predictors of job performance and attitudes: the process of work-family conflict and enrichment.

PubMed

Odle-Dusseau, Heather N; Britt, Thomas W; Greene-Shortridge, Tiffany M

2012-01-01

The goal of the current study was to test a model where organizational resources (aimed at managing work and family responsibilities) predict job attitudes and supervisor ratings of performance through the mechanisms of work-family conflict and work-family enrichment. Employees (n = 174) at a large metropolitan hospital were surveyed at two time periods regarding perceptions of family supportive supervisor behaviors (FSSB), family supportive organizational perceptions (FSOP), bidirectional work-family conflict, bidirectional work-family enrichment, and job attitudes. Supervisors were also asked to provide performance ratings at Time 2. Results revealed FSSB at Time 1 predicted job satisfaction, organizational commitment and intention to leave, as well as supervisor ratings of performance, at Time 2. In addition, both work-family enrichment and family-work enrichment were found to mediate relationships between FSSB and various organizational outcomes, while work-family conflict was not a significant mediator. Results support further testing of supervisor behaviors specific to family support, as well models that include bidirectional work-family enrichment as the mechanism by which work-family resources predict employee and organizational outcomes.

Addressing defeatist beliefs in work rehabilitation

PubMed Central

Mervis, Joshua E.; Lysaker, Paul H.; Fiszdon, Joanna M.; Bell, Morris D.; Chue, Amanda E.; Pauls, Carol; Bisoglio, Joseph; Choi, Jimmy

2018-01-01

Background Adults with serious mental illness (SMI) may struggle with expectations of failure in vocational rehabilitation. These expectations can be global and trait-like or performance-specific and related to ability. Aims To date, it has not been examined whether global or performance-specific defeatist beliefs are related to functional outcomes. Method The Indianapolis Vocational Intervention Program (IVIP) is a CBT intervention used to address expectations of failure and improve work performance. We examined the relationships between defeatist beliefs, self-esteem, social functioning, and work behaviors in 54 adults with SMI who completed IVIP within a work therapy program. Results Baseline work-specific defeatist beliefs were related to baseline self-esteem, employment attitude, and work behaviors. Decline in work-specific defeatist beliefs was associated with better social functioning, self-esteem, and work behaviors. Decline in global defeatist beliefs was only associated with improvements in social functioning. Conclusions Performance-specific expectations about work may be an appropriate therapeutic target to enhance work outcome in SMI. PMID:26828824

Teams make it work: how team work engagement mediates between social resources and performance in teams.

PubMed

Torrente, Pedro; Salanova, Marisa; Llorens, Susana; Schaufeli, Wilmar B

2012-02-01

In this study we analyze the mediating role of team work engagement between team social resources (i.e., supportive team climate, coordination, teamwork), and team performance (i.e., in-role and extra-role performance) as predicted by the Job Demands-Resources Model. Aggregated data of 533 employees nested within 62 teams and 13 organizations were used, whereas team performance was assessed by supervisor ratings. Structural equation modeling revealed that, as expected, team work engagement plays a mediating role between social resources perceived at the team level and team performance as assessed by the supervisor.

[THE EMPIRICAL DISTINCTIVENESS OF WORK ENGAGEMENT AND WORKAHOLISM AMONG HOSPITAL NURSES IN JAPAN : THE EFFECT ON SLEEP QUALITY AND JOB PERFORMANCE].

PubMed

Kubota, Kazumi; Shimazu, Akihito; Kawakami, Norito; Takahashi, Masaya; Nakata, Akinori; Schaufeli, Wilmar B

2011-01-01

The aim of the present study is to demonstrate the distinctiveness of work engagement and workaholism by examining their relationships with sleep quality and job performance. A total of 447 nurses from 3 hospitals in Japan were surveyed using a self-administrated questionnaire including Utrecht Work Engagement Scale (UWES), the Dutch Workaholism Scale (DUWAS), questions on sleep quality (7 items) regarding (1) difficulty initiating sleep, (2) difficulty maintaining sleep, (3) early morning awakening, (4) dozing off or napping in daytime, (5) excessive daytime sleepiness at work, (6) difficulty awakening in the morning, and (7) tiredness awakening in the morning, and the World Health Organization Health Work Performance Questionnaire. The Structural Equation Modeling showed that, work engagement was positively related to sleep quality and job performance whereas workaholism negatively to sleep quality and job performance. The findings suggest that work engagement and workaholism are conceptually distinctive and that the former is positively and the latter is negatively related to well-being (i.e., good sleep quality and job performance).

Role of working memory, inhibition, and fluid intelligence in the performance of the Tower of London task.

PubMed

D'Antuono, Giovanni; La Torre, Francesca Romana; Marin, Dario; Antonucci, Gabriella; Piccardi, Laura; Guariglia, Cecilia

2017-01-01

We investigated the relationship between verbal and visuo-spatial measures of working memory, inhibition, fluid intelligence and the performance on the Tower of London (ToL) task in a large sample of 830 healthy participants aged between 18 and 71 years. We found that fluid intelligence and visuo-spatial working memory accounted for a significant variance in the ToL task, while performances on verbal working memory and on the Stroop Test were not predictive for performance on the ToL. The present results confirm that fluid intelligence has a fundamental role on planning tests, but also show that visuo-spatial working memory plays a crucial role in ToL performance.

Maintenance Performance System. Guide for Individual Technical Training in Direct Support Units. Volume 1. Training Methodology

DTIC Science & Technology

1984-01-01

903-78-C-2007 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT. TASK AREA & WORK UNIT NUMBERS Anacapa Sciences, Inc...of training responsibilities, and the most difficult job to perform . He is responsible for the work his section performs , as well as for training his...tasks. Relate these tasks to work done in your shop. Determine which tasks are performed frequently, rarely, and never. As you perform this review, make a

Who gets fired, who gets re-hired: the role of workers' contract, age, health, work ability, performance, work satisfaction and employee investments.

PubMed

Wagenaar, Alfred F; Kompier, Michiel A J; Houtman, Irene L D; van den Bossche, Seth N J; Taris, Toon W

2015-04-01

Many workers have been dismissed in the past few years, either becoming unemployed or finding re-employment. The current study examined whether dismissal and its follow-up for the employee (re-employment versus unemployment) could be predicted from workers' employment contract and age, and their health status, work ability, work performance, work satisfaction and employee investments at baseline. Our sample comprised a selection of participants from the Netherlands Working Conditions Survey 2010 who participated in a follow-up questionnaire in 2012 (N = 2,644). We used logistic regression analyses to test our hypotheses. Temporary employment, low health status, low work ability, poor work performance, low work satisfaction and no employee investments in terms of training predicted future dismissal. Furthermore, older workers and workers reporting decreased work performance due to impaired health at baseline had a lower chance of re-employment after being dismissed. Interestingly, after taking into account all predictors, former temporary workers without permanent employment prospects had much better chances of re-employment after their dismissal than former permanent workers. Temporary, less healthy, low work ability, poor performing, dissatisfied and "under-invested" workers are at risk for dismissal, whereas older and less healthy workers are (also) at risk for long-term unemployment after being dismissed.

Region 3 - National Remedial Action Contracts / Multiple Award Competition (SOL-R3-13-00006)

EPA Pesticide Factsheets

Region 3 - EPA is performing market research to determine if industry has the capability and capacity to perform the work, on a national level, as described in the attached draft Statement of Work /Performance Work Statement(SOW/PWS).

48 CFR 3452.224-70 - Release of information under the Freedom of Information Act.

Code of Federal Regulations, 2014 CFR

2014-10-01

...: (1) Unit prices, including labor rates; (2) Statements of Work/Performance Work Statements generated by the contractor; (3) Performance requirements, including incentives, performance standards, quality levels, and service level agreements; (4) Reports, deliverables, and work products delivered in...

48 CFR 3452.224-70 - Release of information under the Freedom of Information Act.

Code of Federal Regulations, 2012 CFR

2012-10-01

...: (1) Unit prices, including labor rates; (2) Statements of Work/Performance Work Statements generated by the contractor; (3) Performance requirements, including incentives, performance standards, quality levels, and service level agreements; (4) Reports, deliverables, and work products delivered in...

48 CFR 3452.224-70 - Release of information under the Freedom of Information Act.

Code of Federal Regulations, 2011 CFR

2011-10-01

...: (1) Unit prices, including labor rates; (2) Statements of Work/Performance Work Statements generated by the contractor; (3) Performance requirements, including incentives, performance standards, quality levels, and service level agreements; (4) Reports, deliverables, and work products delivered in...

A method for work modeling at complex systems: towards applying information systems in family health care units.

PubMed

Jatobá, Alessandro; de Carvalho, Paulo Victor R; da Cunha, Amauri Marques

2012-01-01

Work in organizations requires a minimum level of consensus on the understanding of the practices performed. To adopt technological devices to support the activities in environments where work is complex, characterized by the interdependence among a large number of variables, understanding about how work is done not only takes an even greater importance, but also becomes a more difficult task. Therefore, this study aims to present a method for modeling of work in complex systems, which allows improving the knowledge about the way activities are performed where these activities do not simply happen by performing procedures. Uniting techniques of Cognitive Task Analysis with the concept of Work Process, this work seeks to provide a method capable of providing a detailed and accurate vision of how people perform their tasks, in order to apply information systems for supporting work in organizations.

Working Capital Management, Corporate Performance, and Strategic Choices of the Wholesale and Retail Industry in China

PubMed Central

Li, Chuan-guo; Dong, Hui-min; Chen, Shou; Yang, Yan

2014-01-01

We examine the influence of strategic choice on working capital configurations and observe how the relationship between working capital ratio and operational performance differs depending on strategy. By clustering the strategic factors of the wholesale and retail industry, we find three categories of strategies: terminal market strategy, middle market strategy, and hybrid strategy. Using the panel data of the listed companies of the wholesale and retail industry as our sample, we analyze the differences in the ways companies configure working capital, the speed with which working capital adjusts to its target, and the effects of working capital on performance for companies that make different strategic choices. The empirical results suggest that working capital is configured and adjusted to its target in different ways under different competitive strategic choices. This effect is finally transferred to influence the relationship between working capital configuration and operational performance. PMID:25121141