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JUSTMAN, JOSEPH – 1967
RESEARCH FINDINGS ON ABILITY GROUPING ARE INCONCLUSIVE BECAUSE NEITHER HETEROGENEITY NOR HOMOGENEITY HAS BEEN DEFINED WITH SUFFICIENT CLARITY. THE TENDENCY IN THESE STUDIES HAS BEEN TO STRESS THE PERFORMANCE OF THE PUPILS IN SUCH CLASSES RATHER THAN THE PERFORMANCE OF THE CLASS AS A WHOLE. IN A STUDY OF 181 CLASSES (4,705 PUPILS) HOMOGENEITY WAS…
Descriptors: Ability Grouping, Achievement Gains, Data, Elementary Schools