This Information Capsule examines the background and history in addition to research findings pertaining to class size reduction (CSR). This Capsule concludes that although educational researchers have not definitively agreed upon the effectiveness of CSR, given its almost universal public appeal, there is little doubt it is here to stay in some…

During summer vacation, many students lose knowledge and skills. By the end of summer, students perform, on average, one month behind where they left off in the spring. Participation in summer learning programs should mitigate learning loss and could even produce achievement gains. Indeed, educators and policymakers increasingly promote summer…

Despite long-term and ongoing efforts to close the achievement gap between disadvantaged and advantaged students, low-income students continue to perform at considerably lower levels than their higher-income peers in reading and mathematics. Research has shown that students' skills and knowledge often deteriorate during the summer months, with…

Summarizes evidence for the effects of class-size reduction from experimental and nonexperimental measurements, addresses questions about the robustness of each type of estimate, and suggests hypotheses that could reconcile differences resulting from conflicting evidence. Discusses potential costs and the implications for future research into the…

Several dimensions of state-sponsored, reduced-class-size programs are addressed. At present, 20 states are contemplating following the lead of Indiana's PRIME TIME and Tennessee's STAR programs. Yet the effectivenessness of reduced class size in elementary schools continues to be uncertain and controversial. No one knows whether reduced class…