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A Correction for the Approximate Test in Repeated Measures Designs With Two or More Independent Groups

C.N.R.S. and Université René Descartes, Paris, France

The routine approximate test procedure in repeated measures designs when the condition of circularity is not fulfilled uses an erroneous formula in the case of two or more groups. This may lead to a substantial underestimation of the deviation from circularity when the total number of subjects is small.

Key Words: ANOVA • circularity • sphericity

Journal of Educational and Behavioral Statistics, Vol. 16, No. 4, 371-372 (1991)
DOI: 10.3102/10769986016004371


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