What One Hundred Years of Research Says About the Effects of Ability Grouping and Acceleration on K-12 Students Academic Achievement: Findings of Two Second-Order Meta-Analyses
Steenbergen-Hu, S.; Makel, M. C.; Olszewski-Kubilius, P.
Review of Educational Research: Articles in press
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Kevin McGrew, PhD
Educational Psychologist
Director, Institute for Applied Psychometrics
IAP
www.themindhub.com
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