Three national evaluation efforts--Head Start, Follow through Planned Variation, and Head Start Planned Variation--are reviewed to examine their effectiveness concerning the trainability of intelligence in disadvantaged children during preschool and elementary grades. The evidence on the effectiveness of these projects is highly controversial, but…

A study compared the changes in students with moderate mental retardation in two school settings (segregated and semi-integrated) in intellectual development, adaptive behavior, receptive language, and academic achievement. While both groups gained in some areas, greater gains were found in the semi-integrated population. (MSE)

Project PRIME (Programmed Re-Entry Into Mainstream Education) is concerned with evaluating the effectiveness of programs that aim at integration of handicapped children into regular classrooms. The main goals of the project are to determine which handicapped children can benefit from integration and under which conditions would it prove the most…