The United States must raise the graduation rates of community college students if it is to increase economic opportunity for individuals and improve the competitiveness of its workforce. Yet too many students arrive on campus academically underprepared and get placed into developmental (or remedial) courses where they fail to progress. For this…

Growing investments in preschool at the federal and state levels--particularly in evidence-based approaches to language acquisition and reading--are predicated in part on the hope that high-quality preschools might help close the gap between the school achievement of low-income children and their more affluent peers. Indeed, the problem is…

Community colleges across the country confront a clear challenge: too many students arrive on campus unprepared, get placed into developmental (or remedial) courses where they fail to progress, and never complete a credential, graduate, or transfer to a four-year institution. At the same time, community colleges are subject to increasing…

For the past decade, MDRC has evaluated a number of interventions designed to improve the outcomes of community college students, including enhanced counseling, learning communities, and financial incentives. Encouragingly, many of these strategies have produced positive effects, affirming that changes in institutional practices and policies can…

Professional development--formal in-service training to upgrade the content knowledge and pedagogical skills of teachers--is widely viewed as an important means of improving teaching and learning. While many interventions "include" professional development, professional development was the central intervention of the two recent research and…

For the past decade, MDRC has evaluated a number of interventions designed to improve the outcomes of community college students, including enhanced counseling, learning communities, and financial incentives. Encouragingly, many of these strategies have produced positive effects, affirming that changes in institutional practices and policies can…

This paper 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. Part I of the paper introduces the concepts, issues, and options involved. Parts II and III present empirical findings…