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Little, if any, increase in pupil achievement can be expected from reducing class size if teachers continue to use the same instructional methods and procedures in the smaller classes that they have used in larger classes (Robinson, p. 82).

Teachers with small classes must not only be trained to be effective in such settings, but they must also be committed to try new skills and procedures.

Robinson, Glen E. “Synthesis of Research on the Effects of Class Size.” EDUCATIONAL LEADERSHIP (April 1990): 80-90.

The most recent comprehensive review of existing research was completed by Robinson (1990), and used a cluster analysis approach. Studies were “clustered” into categories considered important for class size decisions such as grade levels, subject areas, student characteristics, student achievement, student behavior, and teaching practices. The results of part of Robinson’s analysis appear below.

Effective schools research has extended its research agenda by focusing on an expanded number of variables that are presumed to be related to student achievement. Schools are now perceived as a cultural entity where the complex interplay of multiple variables affect the lives of all who learn and teach in those institutions. As the metaphor for American schools has shifted from an assembly line to that of a caring, learning community, the class size research agenda has also shifted to include such variables as instructional method, teacher morale and stress, teacher work load, student behavior and attitudes, content areas, student characteristics, and grade level. Bennett (1987), in a review of more recent research, found broad agreement among researchers on the following general conclusions: