A comparison of the achievement test scores in the intermediate grades in a school using performance grouping and a school using heterogeneous grouping
Burton, Priscilla J.
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The main purpose of this study was to investigate whether or not a form of ability grouping known as performance grouping had an effect on the students' achievement test scores that would not be obtained in a heterogeneous classroom. The major hypothesis held was that added gains would be shown on the standardized achievement test scores by the students in a school using performance grouping that would not be shown by students in a school using heterogeneous grouping.