Understanding the effects of class size reduction (CSR) has been an enduring issue in education. For the past 3 decades, Project STAR has stimulated research and policy discussions regarding the effects of CSR on a variety of outcomes. Schanzenbach (2007) reviewed STAR studies and concluded that small classes improved student academic outcomes.…

The search for the best educational environment, especially in terms of class size, is an important educational issue for parents, teachers, administrators, and government officials. Parents and educators argue that smaller class size leads to more effective teaching and improved learning for students. Government officials argue that substantial…

Given the failure of previous research to find consistent effects of class size on students' achievement, this study examined whether teachers in British elementary schools changed their behavior in ways conducive to learning when they worked with classes significantly smaller than average. Seven pairs of elementary school teachers judged as…

Most teachers and the public believe that children in kindergarten and the primary grades benefit from small classes because of children's need for individualized instruction and teacher attention. This report, part of a comprehensive policy study of early childhood education, presents a review of the research on the effect of class size on…