The Continuing Problem of False Positives in Repeated Measures ANOVA in Psychophysiology: A Multivariate Solution

Psychophysiology - Tập 24 Số 4 - Trang 479-486 - 1987
Michael W. Vasey1, Julian F. Thayer1
1Department of Psychology, The Pennsylvania State University, University Park, Pennsylvania

Tóm tắt

ABSTRACTViolation of the validity assumptions of repeated measures analysis of variance continues to be a problem in psychophysiology. Such violation results in positive bias for those tests involving the repeated measures factor(s), Recently it has been shown that the tests of simple interactions and multiple comparisons are even more vulnerable to bias (Boik. 1981; Mitzel & Games, 1981). The present paper offers a discussion of the validity assumptions for both overall and sub‐effect tests and describes a multivariate approach which allows exact analysis of such designs. A modification of the univariate approach is also described. Validity concerns for both approaches are much less problematic than those of the traditional approach.

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Thông tin xuất bản

Psychophysiology

Tập 24 Số 4

479-486

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