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Adaptive Education and Student Outcomes: A Quantitative Synthesis

Hersholt C. Waxman, Margaret C. Wang, Kenneth A. Anderson, Herbert J. Walberg and C. Waxman
The Journal of Educational Research
Vol. 78, No. 4 (Mar. - Apr., 1985), pp. 228-236
Published by: Taylor & Francis, Ltd.
Stable URL: http://www.jstor.org/stable/27540127
Page Count: 9
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Adaptive Education and Student Outcomes: A Quantitative Synthesis
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Abstract

To estimate the effects of adaptive education on cognitive, affective, and behavioral outcomes of learning, 309 effect sizes were calculated using statistical data from 38 studies that contained a combined sample of approximately 7,200 students. The substantial mean of the study-weighted effect sizes is .45, suggesting that the average student in adaptive programs scores at the 67th percentile of control group distributions. The effect appeared constant across grades, socioeconomic levels, races, private and public schools, and community types. In addition, the effects were not significantly different across the categories of adaptiveness, student outcomes, social contexts, and methodological rigor of the studies.

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