Two-way dual language (DL) classrooms enroll students of two different language backgrounds and teach curriculum in both languages. I estimate the effect of attending a DL school on student achievement using school choice lotteries from Charlotte-Mecklenburg School District in North Carolina, finding local average treatment effects of 0.04 and…

In 2010, Teach For America (TFA) launched a major expansion effort, funded in part by a five-year Investing in Innovation scale-up grant from the U.S. Department of Education. To examine the effectiveness of TFA elementary school teachers in the second year of the scale-up, we recruited thirty-six schools from ten states and randomly assigned…

The 2007 Public Education Reform Amendment Act led to 39 percent of the principals in District of Columbia Public Schools (DCPS) being dismissed before the start of the 2008-09 school year, and additional principal exits over the next few years. We measure the impact of replacing these principals on schoolwide student achievement by measuring the…

Schools often have to decide between extending the length of the school year or the school day. This paper examines the effects of changes in the distribution of instructional time on eighth-grade student achievement through a methodological framework that disaggregates total yearly instructional time into separate inputs for days per year and…

Catching students up who have fallen behind academically is a key challenge for educators, and can be difficult to do in a cost-effective manner. This field experiment examines the causal effect of a program designed to provide struggling sixth and seventh graders with math instruction delivered in small groups of roughly ten students by select…

Using unique administrative data from North Carolina that allow us to separate classroom teacher turnover during the school year from end-of-year turnover, we find students who lose their teacher during the school year have significantly lower test score gains (on average -7.5 percent of a standard deviation unit) than those students whose…

We explore the effects of a statewide policy change that increased the number of high school math courses required for admission to four-year public universities in North Carolina. Using data on cohorts of eighth-grade students from 1999 to 2006, we exploit variation by district over time in the math course-taking environment encountered by…

A particularly controversial topic in current education policy is the expansion of the charter school sector. This paper analyzes the spillover effects of charter schools on traditional public school (TPS) students in New York City. I exploit variation in both the timing of charter school entry and distance to the nearest charter school to obtain…

States across the country are developing systems for evaluating school principals on the basis of student achievement growth. A common approach is to hold principals accountable for the value added of their schools--that is, schools' contributions to student achievement growth. In theory, school value added can reflect not only principals'…

Chicago Public Schools initiated the Excellence in Teaching Project, a teacher evaluation program designed to increase student learning by improving classroom instruction through structured principal-teacher dialogue. The pilot began in forty-four elementary schools in 2008-09 (cohort 1) and scaled up to include an additional forty-eight…

School districts throughout the United States are increasingly providing greater autonomy to local public (non-charter) school principals. In 2005-06, Chicago Public Schools initiated the Autonomous Management and Performance Schools program, granting academic, programmatic, and operational freedoms to select principals. This paper provides…

We use a regression discontinuity strategy to produce causal estimates for the effect of remediation under Florida's test-based promotion policy on multiple outcomes for up to five years after the intervention. Students subjected to the policy were retained in the third grade, were required to be assigned to a high-quality teacher during the…

The utility of value-added estimates of teachers' effects on student test scores depends on whether they can distinguish between high- and low-productivity teachers and predict future teacher performance. This article studies the year-to-year variability in value-added measures for elementary and middle school mathematics teachers from five large…

In this article, I examine the current policy of full inclusion of children receiving special education services in regular education classrooms. Specifically, I focus on the policy's effects on the "classmates" of children with special needs, with a particular focus on classmates of students with serious emotional problems. Results suggest that…

We are in the midst of what amounts to a national experiment in how best to attract, prepare, and retain teachers, particularly for high-poverty urban schools. Using data on students and teachers in grades 3-8, this study assesses the effects of pathways into teaching in New York City on the teacher workforce and on student achievement. We ask…