A meta-analysis of findings from 31 separate studies showed that ability grouping has significant positive effects on the academic performance of elementary school children. The benefits of grouping tended to be small in the typical study of achievement --an increase from the 50th to the 58th percentile for the typical student in a grouped class.…

Meta-analytic reviews have shown that gifted students gain little from programs of minimal instructional modification (multilevel classes), more from greater modifications (cross-grade and within-class programs) and the most from those involving the greatest amount of curricular adjustment (enrichment and acceleration). (Author/DB)

The relationship between class size and scholastic outcomes is addressed in this paper. A literature review focuses on the research of Glass and Smith (1978) and Larkin and Keeves (1984). Contradictory and inconclusive research findings about teacher effectiveness in relation to class size indicate that emphasis should be placed on training…

This article presents a meta-analysis of studies of the effects of special homogeneous classes versus regular heterogeneous classes on achievement and nonachievement outcomes of gifted students. The principal findings indicate that the gifted students in special classes achieved more than their gifted counterparts in regular classes. (Author/IAH)