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Wilcox, Rand R. – Review of Educational Research, 1995
Reviews new techniques for dealing with the problem that slight departures from normality can substantially lower power when means are compared and that a popular measure of effect size can be misleading. Contemporary ways of comparing groups can reveal important differences that are missed by conventional methods based on means. (SLD)
Descriptors: Analysis of Variance, Comparative Analysis, Effect Size, Measurement Techniques