Effects of Multigrade and Multi-Age Classes Reconsidered

Abstract

In response to “Cognitive and Noncognitive Effects of Multigrade and Multi-Age Classes: A Best-Evidence Synthesis” (Veenman, 1995), Mason and Burns (1996) report that their research and review of the literature has led them to conclude that multigrade classes have a slightly negative effect on student achievement. They argue, moreover, that multigrade classes generally have better students and perhaps better teachers and that this selection bias masks the negative effects of less effective instruction in multigrade classes. In this rejoinder, a reanalysis, based on meta-analytic procedures, of the available multigrade and multi-age studies shows the average weighted effect sizes to be essentially zero or close to zero. For all analyses, the confidence intervals around the average effect sizes included zero. These results provide little support for the assumption that the quality of instruction in multigrade classes is lower than in single-grade classes. Between-study differences revealed that favorable conditions for classroom instruction, the country of publication, the locality and socioeconomic status of the school, the grade level of the students, and the number of years spent in multigrade classes need the attention of investigators in future research into the effects of multigrade classes.

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