Meta-analysis of 17 studies was conducted to determine the effectiveness of retaining elementary school students in grade. Calculations with data from the 17 studies produced 217 effect size measures, most of which were measures of differences in reading and mathematics achievement. Some measures of differences in social adjustment, behavior, and…

Recent evaluations of Federal compensatory education programs funded by the Elementary and Secondary Education Act of 1965, Title I, and maintained by the Education Consolidation and Improvement Act of 1981, Chapter 1, point to qualified effectiveness in the targeting of services, program structures, and classroom arrangements for increasing the…

This study describes a school-university collaboration involving a number of professional development schools in Israel and examines the efficacy of such collaborations. A government agency requested that a university researcher plan and implement collaborative programs. The program determined to include a heterogeneous group of schools, selected…