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Direct linkFacon, Bruno; Magis, David; Belmont, John M. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
The matching of groups is a traditional way to control for confounding variables in developmental disabilities research. The equivalency of means across groups is routinely checked for these variables, but not the homogeneity of their variances or the shapes of their distributions. In the present paper, it is argued that group matching can go…
Descriptors: Test Bias, Developmental Disabilities, Scores, Statistical Analysis
