Back to School
Victor Lavy
NBER Working Paper, July 2010
Abstract:
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, there is limited evidence on the effect of classroom instructional time. Such evidence is of policy relevance in many countries, and it became very concrete recently as President Barrack Obama announced the goal of extending the school week and year as a central objective in his proposed education reform for the US. In this paper, I estimate the effects of instructional time on students' academic achievement in math, science and reading. I estimate linear and non-linear instructional time effects controlling for unobserved heterogeneity of both pupils and schools. The evidence from a sample of 15 year olds from over fifty countries that participated in PISA 2006 consistently shows that instructional time has a positive and significant effect on test scores. The effect is large relative to the standard deviation of the within pupil test score distribution. I obtain similar evidence from a sample of 10 and 13 year olds in Israel. The OLS results are highly biased upward but the within student estimates are very similar across groups of developed and middle-income countries and age groups. Evidence from primary and middle schools in Israel is similar to the evidence from OECD countries. However, the estimated effect of instructional time in the sample of developing countries is much lower than the effect size in the developed countries. I also show that the productivity of instructional time is higher in countries that implemented school accountability measures, and in countries that give schools autonomy in hiring and firing teachers.
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Family Background Buys an Education in Minnesota but Not in Sweden
Wendy Johnson, Ian Deary, Karri Silventoinen, Per Tynelius & Finn Rasmussen
Psychological Science, forthcoming
Abstract:
Educational attainment, the highest degree or level of schooling obtained, is associated with important life outcomes, at both the individual level and the group level. Because of this, and because education is expensive, the allocation of education across society is an important social issue. A dynamic quantitative environmental-genetic model can help document the effects of social allocation patterns. We used this model to compare the moderating effect of general intelligence on the environmental and genetic factors that influence educational attainment in Sweden and the U.S. state of Minnesota. Patterns of genetic influence on educational outcomes were similar in these two regions, but patterns of shared environmental influence differed markedly. In Sweden, shared environmental influence on educational attainment was particularly important for people of high intelligence, whereas in Minnesota, shared environmental influences on educational attainment were particularly important for people of low intelligence. This difference may be the result of differing access to education: state-supported access (on the basis of ability) to a uniform higher-education system in Sweden versus family-supported access to a more diverse higher-education system in the United States.
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You Get What You Pay For: Incentives and Selection in the Education System
Thomas Dohmen & Armin Falk
Economic Journal, August 2010, Pages F256-F271
Abstract:
We analyse worker self-selection, with a special focus on teachers, to explore whether worker composition is generally endogenous. We analyse laboratory experimental data to provide causal evidence on particular sorting patterns. Our field data analysis focuses specifically on selection patterns of teachers. We find that teachers are more risk averse than employees in other professions, indicating that relatively risk averse individuals sort into teaching occupations under the current system. Using survey measures on trust and reciprocity we find that teachers trust more and are less negatively reciprocal than other employees, and establish differences in personality based on the Big Five concept.
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Examining the achievement test score gap between urban and suburban students
Jonathan Sandy & Kevin Duncan
Education Economics, September 2010, Pages 297-315
Abstract:
Data from the National Longitudinal Survey of Labor Market Experience for Youth (1997 cohort) are used to examine the urban school achievement gap. Specifically, we use the Blinder-Oaxaca technique to decompose differences in Armed Services Vocational Aptitude Battery scores for students who attended urban and suburban schools. We find that approximately 75% of the gap in this achievement measure is explained by the high concentration of disadvantaged students in urban schools. Broken down further, 36% of the gap can be attributed to differences in family background. The lower income of urban families alone explains 25% of the gap. Differences in measures of school quality, such as small classes, large schools, and private school attendance, explain very little of the gap. While current policy focuses on schools and school reform, our results are a reminder that meaningful efforts to improve performance in urban schools must address socioeconomic conditions in urban areas.
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Family and Neighborhood Sources of Socioeconomic Inequality in Children's Achievement
Narayan Sastry & Anne Pebley
Demography, August 2010, Pages 777-800
Abstract:
We examined family and neighborhood sources of socioeconomic inequality in children's reading and mathematics achievement using data from the 2000-2001 Los Angeles Family and Neighborhood Survey. To describe inequality in achievement scores, we used Gini coefficients and concentration indices and multilevel regression models. We found no inequality in children's achievement by family income when other variables in the model were held constant. Mother's reading scores and average neighborhood levels of income accounted for the largest proportion of inequality in children's achievement. Neighborhood economic status appears to be strongly associated with children's skills acquisition.
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Roland Fryer
NBER Working Paper, August 2010
Abstract:
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, peer dynamics, and identity can explain this puzzle. Under a reasonable set of assumptions, models of peer dynamics and identity are consistent with the time-series data. Segregation and models of discrimination both contradict the trends in important ways.
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Are Educational Vouchers Only Redistributive?
Eric Bettinger, Michael Kremer & Juan Saavedra
Economic Journal, August 2010, Pages F204-F228
Abstract:
It is unclear if vouchers increase educational productivity or are purely redistributive, benefiting recipients by giving them access to more desirable peers at others' expense. To examine this, we study an educational voucher programme in Colombia which allocated vouchers by lottery. Among voucher applicants to vocational schools, lottery winners were less likely to attend academic secondary schools and thus had peers with less desirable observable characteristics. Despite this, lottery winners had better educational outcomes. In this population, vouchers improved educational outcomes through channels beyond redistribution of desirable peers. We discuss potential channels which may explain the observed effects.
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The Quality and Distribution of Teachers under the No Child Left Behind Act
Eric Hanushek & Steven Rivkin
Journal of Economic Perspectives, Summer 2010, Pages 133-150
Abstract:
The main effects of No Child Left Behind on the quality of teaching are likely to come through two provisions of the act. First, NCLB establishes benchmarks based on test score pass rates that schools must meet in order to remain in good standing and avoid sanctions. Since teachers are central to student performance, this accountability component of NCLB is likely to have direct effects on both the demand for and supply of teachers and therefore on both the composition of the stock of public school teachers and the distribution of those teachers among schools. Second, NCLB explicitly requires districts to have "highly qualified" teachers, and the enunciation and enforcement of such a standard might have an additional effect on the composition of teachers. We will discuss three avenues by which these requirements might affect the quality of teachers. First, we will argue that the requirements for "highly qualified" teachers are unlikely to have had any perceptible effect on the performance of students. Second, the combination of quality requirements and the more-stringent testing environment could make teaching appear more costly and risky as a profession and thus alter the composition of new entrants, but at least so far, we find no evidence of such effects. Finally, the accountability provisions might change the dynamics of the labor market for teachers, including decisions about hiring and job separation. While not completely understood, this channel might be quite important, especially at low-performing schools where the stress of the accountability requirements is highest. We will provide new evidence from Texas on the relationship between school accountability ratings and teacher transitions both out of schools and out of grades three through eight, the grades subject to NCLB testing requirements. Finally, we offer some observations about potential policy implications and a future research agenda.
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Kristine Lamm West & Elton Mykerezi
Economics of Education Review, forthcoming
Abstract:
This study examines the impact that collective bargaining has on multiple dimensions of teacher compensation, including average and starting salaries, early and late returns to experience, returns to graduate degrees, and the incidence of different pay for performance schemes. Using data from the School and Staffing Survey (SASS) and a more recent data set, the Teacher Rules, Roles and Rights (TR3), we find that collective bargaining has a significant impact on all aspects of current, qualification-specific, salary schedules. Further, we find some evidence that bargaining impacts the design of performance pay plans. Specifically, unions tend to encourage teacher bonuses that are based on additional qualifications or duties, but discourage bonuses that directly reward improved student test scores.
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Suburbanization, Demographic Change and the Consequences for School Finance
David Figlio & Deborah Fletcher
NBER Working Paper, June 2010
Abstract:
The existing literature on the relationship between the share of elderly in a community and the support for local public education has led to mixed results to date. One potential reason behind this is that the share of elderly in a community is endogenous, and it is very difficult to disentangle the effects of individuals aging in place from that of dynamic Tiebout sorting. The point of this paper is to carefully document the degree to which aging in place has occurred in the American suburbs, and to estimate the degree to which it has influenced school finance once the initial settlers of these suburbs were no longer the parents of school-aged children. We hand-match data from the 1950 and 1960 Censuses of Population and Housing to more recent data to link postwar suburban development to later school finance. Using a novel method for identifying the causal effects of aging in place, we find that the share of elderly adults who age in place is negatively related to the level of support for public schooling, and that this is particularly true for school districts in metropolitan areas where the school-aged population is more heavily nonwhite relative to the elderly population.
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Social contagion of motivation between teacher and student: Analyzing underlying processes
Rémi Radel, Philippe Sarrazin, Pascal Legrain & Cameron Wild
Journal of Educational Psychology, August 2010, Pages 577-587
Abstract:
We examined (a) whether motivational orientation can spread from teachers to students during 2 consecutive teaching-learning sessions and (b) mechanisms underlying this phenomenon in a special physical education session delivered to high school students. Participants who were taught a sport activity by an allegedly paid instructor reported lower interest in learning and exhibited less persistence in a free-choice period than students taught by a supposedly volunteer instructor, despite receiving the same standardized lesson across experimental conditions. When participants taught the activity to their peers in a subsequent unconstrained learning session, lower levels of interest and behavioral persistence were also exhibited by learners who received the second lesson. A structural equation model confirmed that learners at the end of this educational chain made inferences about how intrinsically motivated their peer tutors were, on the basis of their teaching style (i.e., autonomy-supportive behaviors) and the positive affects they displayed. These inferences, in turn, affected the students' own intrinsic motivation for the activity. Results are interpreted in relation to self-determination theory, and practical implications of the findings are discussed.
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Stephanie Martin
Education Economics, September 2010, Pages 349-370
Abstract:
The present paper examines the relationship between public school teacher salaries and the racial concentration and segregation of students in the district. A particularly rich set of control variables is included to better measure the effect of racial characteristics. Additional analyses included Metropolitan Statistical Area fixed effects and longitudinal teacher salary data. The results are generally consistent with a positive compensating wage differential for working in districts with a higher percentage of Black and Latino students. The longitudinal results also suggest that more segregated districts may pay lower salaries.
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Searching for Effective Teachers with Imperfect Information
Douglas Staiger & Jonah Rockoff
Journal of Economic Perspectives, Summer 2010, Pages 97-118
Abstract:
Over the past four decades, empirical researchers -- many of them economists -- have accumulated an impressive amount of evidence on teachers. In this paper, we ask what the existing evidence implies for how school leaders might recruit, evaluate, and retain teachers. We begin by summarizing the evidence on five key points, referring to existing work and to evidence we have accumulated from our research with the nation's two largest school districts: Los Angeles and New York City. First, teachers display considerable heterogeneity in their effects on student achievement gains. Second, estimates of teacher effectiveness based on student achievement data are noisy measures. Third, teachers' effectiveness rises rapidly in the first year or two of their teaching careers but then quickly levels out. Fourth, the primary cost of teacher turnover is not the direct cost of hiring and firing, but rather is the loss to students who will be taught by a novice teacher rather than one with several years of experience. Fifth, it is difficult to identify at the time of hire those teachers who will prove more effective. As a result, better teachers can only be identified after some evidence on their actual job performance has accumulated. We then explore what these facts imply for how principals and school districts should act, using a simple model in which schools must search for teachers using noisy signals of teacher effectiveness. The implications of our analysis are strikingly different from current practice. Rather than screening at the time of hire, the evidence on heterogeneity of teacher performance suggests a better strategy would be identifying large differences between teachers by observing the first few years of teaching performance and retaining only the highest-performing teachers.
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Pierre Lefebvre & Philip Merrigan
Economics of Education Review, forthcoming
Abstract:
Selection into private schools is the principal cause of bias when estimating the effect of private schooling on academic achievement. By exploiting the generous public subsidizing of private high schools in the province of Québec, the second most populous province in Canada, we identify the causal impact of attendance in a private high school on achievement in mathematics. Because the supply of highly subsidized spaces is much higher at the high school level than at the grade school level, 94% of transitions from the public to the private sector occur at the end of primary school, we assume that these transitions are exogenous with respect to changes in transitory unobserved variables affecting math scores conditional on variables such as changes in income and child fixed effects. Using 7 cycles of data from Statistics Canada's National Longitudinal Survey on Children and Youth (NLSCY), we estimate the effect of attending a private high school on the percentile rank and a standardized math test score with different models (child fixed effects, random effects and a pooled OLS) and restricted samples to control for the degree of selection. The results, interpreted as a treatment on the treated effect show that the effect of changing schools, from a public grade school to a private high school, increases the percentile rank of the math score between 4 and 10 points and by between .12 to .36 of a standard deviation depending on the specification and samples.
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Adolescent Work Intensity, School Performance, and Academic Engagement
Jeremy Staff, John Schulenberg & Jerald Bachman
Sociology of Education, July 2010, Pages 183-200
Abstract:
Teenagers working more than 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. The authors 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 in prior research, the authors 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.