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Psychophysiology. 1998 Jul;35(4):470-8.

Testing treatment effects in repeated measures designs: an update for psychophysiological researchers.

Author information

1
Department of Psychology, University of Manitoba, Winnipeg, Canada.

Abstract

In 1987, Jennings enumerated data analysis procedures that authors must follow for analyzing effects in repeated measures designs when submitting papers to Psychophysiology. These prescriptions were intended to counteract the effects of nonspherical data, a condition know to produce biased tests of significance. Since this editorial policy was established, additional refinements to the analysis of these designs have appeared in print in a number of sources that are not likely to be routinely read by psychophysiological researchers. Accordingly, this paper includes additional procedures not previously enumerated in the editorial policy that can be used to analyze repeated measurements. Furthermore, I indicate how numerical solutions can easily be obtained.

PMID:
9643062
[Indexed for MEDLINE]

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