In search for the practical relevance of accountability systems for school improvement, the authors ask whether practitioners traveling between the worlds of system-designated high- and low-performing schools would detect tangible differences in educational quality and organizational effectiveness. In comparing nine exceptionally high and low…

This article presents evidence from a national evaluation of the effects of 21st Century Community Learning Center after-school programs. The study was conducted in 12 school districts and 26 after-school centers, at which 2,308 elementary school students who were interested in attending a center were randomly assigned either to the treatment or…

The author examined the effects of professional development (PD) on literacy instruction using 75,689 lessons from 1,945 classrooms in 112 schools participating in the Study of Instructional Improvement. Stratifying over 94 pretreatment covariates, including prior instruction, the results revealed the importance of PD as a lever for changing…

The higher education diversity programs that Texas enacted after "Hopwood v. University of Texas" banned affirmative action had unexpected positive consequences for the state's high schools. The Texas top 10% law, the Longhorn Opportunity Scholarship and Century Scholarship programs, and the Towards Excellence, Access and Success Grant program…

Many schools have adopted early-grade retention as an intervention strategy for children displaying academic or behavioral problems. Previous analyses of the Early Childhood Longitudinal Study Kindergarten Cohort data have found evidence of negative effects of kindergarten retention on academic learning during the repeated year. Will kindergarten…

The expansion of the No Child Left Behind Act to include science standards and assessments is likely to refocus states' attention on science teaching and learning. Requiring teachers to have subject majors and greater funding of professional development are two key policy levers for improving instruction in science. There has been relatively…

The Andrew W. Mellon Foundation's Graduate Education Initiative (GEI) provided funding to 54 departments in the humanities and related social sciences during the 1990s to improve their PhD programs. This article estimates the aspects of PhD programs the GEI influenced and how these aspects influenced attrition and graduation probabilities. It uses…

This article explores middle school teachers' mathematical knowledge for teaching and the relationship between such knowledge and teachers' subject matter preparation, certification type, teaching experience, and their students' poverty status. The author administered multiple-choice measures to a nationally representative sample of teachers and…

The supplemental educational services (SES) provision of No Child Left Behind introduces a federally mandated after-school tutoring intervention in schools that fail to make adequate yearly progress. This article examines market dynamics in relationship to the law's goals of expanding access to and improving the quality of after-school…

Interest has rapidly increased in studies that randomly assign classrooms or schools to interventions. When well implemented, such studies eliminate selection bias, providing strong evidence about the impact of the interventions. However, unless expected impacts are large, the number of units to be randomized needs to be quite large to achieve…

This article investigates the key determinants of entry into the teaching profession and the subsequent sorting of new teachers across urban, suburban, and rural schools. Of particular interest is the relative importance of teacher salaries, alternative labor market opportunities, and nonpecuniary job attributes or working conditions to this…

Experiments that assign intact groups to treatment conditions are increasingly common in social research. In educational research, the groups assigned are often schools. The design of group-randomized experiments requires knowledge of the intraclass correlation structure to compute statistical power and sample sizes required to achieve adequate…

This article examines how controlling statistically for baseline covariates, especially pretests, improves the precision of studies that randomize schools to measure the impacts of educational interventions on student achievement. Empirical findings from five urban school districts indicate that (1) pretests can reduce the number of randomized…

Employing a theoretical framework derived from the policy innovation and diffusion literature, this research examines how variations over time and across state sociopolitical systems influence states' adoption of accountability policies in higher education. Specifically, factors influencing the adoption of three kinds of performance-accountability…

A number of public school districts in the United States have adopted income-based integration policies--policies that use measures of family income or socioeconomic status--in determining school assignment. Some scholars and policymakers contend that such policies will also reduce racial segregation. In this article this assumption is explored by…