Teachers spend most of their time in school in classrooms, and their instruction and teaching practices may be affected by classroom context such as class size. We examine whether teacher effects interact with classroom context such as class size. Specifically, we seek to determine whether teacher effects are more pronounced in small classes than…

In 2002/03, the Charlotte-Mecklenburg Schools initiated a broad program of accelerating entry into algebra coursework. The proportion of moderately-performing students taking 8th grade algebra increased from less than half to nearly 90%, then reverted to baseline levels, in the span of just six age cohorts. We use this policy-induced variation to…

During April, 1986, approximately 60,000 Delaware public school students in grades 1 through 8 and in grade 11 were administered a battery of achievement tests as part of the state-funded Delaware Educational Assessment Program (DEAP). The Comprehensive Tests of Basic Skills (CTBS) in reading, language arts, and mathematics was administered. In…

The California Assessment Program (CAP) collects a wide range of achievement and demographic data to help local schools and districts improve their instructional programs. Tests in the areas of English/language arts, mathematics, history-social science and science designed by California educators are administered to students in grades 3, 6, 8, and…