In Project STAR, 11,571 students in Tennessee and their teachers were randomly assigned to different classrooms within their schools from kindergarten to third grade. This paper evaluates the long-term impacts of STAR using administrative records. We obtain five results. First, kindergarten test scores are highly correlated with outcomes such as…

Although second- and third-year evaluations of California's K-3 class-size reduction program show modest achievement gains, these improvements have had large costs. Interdistrict inequities have been exacerbated as the teacher work force increased 38 percent, qualifications dropped, and implementation costs soared. Recommendations are discussed.…

A survey of one national and three statewide studies (in Tennessee, Texas, and Alabama) of class-size achievement effects revealed no consistent pattern across various subjects and grade levels. However, smaller classes can improve student achievement, particularly in early grades and when teacher quality remains constant. (Contains 36 footnotes.)…