This study involved the investigation of the effects of the Total Cluster Grouping Model on the achievement and identification of urban, elementary students and to learn about the classroom practices of and perceptions classroom teachers had of their students' ability levels over the course of the study. Proportionality of representation in…

A study examined the use of cluster grouping in two elementary graduation classes (n=197). During the three program years, students involved in the school using cluster grouping were more likely to be identified as high achieving or above average, and all students had significant increases in achievement test scores. (Author/CR)

A policy of reducing class size seems sensible, but might have costly, far-reaching implications for students, teachers, and public support for schools. The purpose of this research brief is to summarize 100 class size research studies from 1950 to 1985 and to regroup them into 18 areas of concern. The cluster analysis approach was designed to…