An empirical study of five multivariate tests for the single-factor repeated measures model
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Communications in Statistics - Simulation and Computation
- Vol. 26 (2) , 605-618
- https://doi.org/10.1080/03610919708813400
Abstract
A Monte Carlo study was used to examine the Type I error and power values of five multivariate tests for the single-factor repeated measures model The performance of Hotelling's T2 and four nonparametric tests, including a chi-square and an F-test version of a rank-transform procedure, were investigated for different distributions, sample sizes, and numbers of repeated measures. The results indicated that both Hotellings T* and the F-test version of the rank-transform performed well, producing Type I error rates which were close to the nominal value. The chi-square version of the rank-transform test, on the other hand, produced inflated Type I error rates for every condition studied. The Hotelling and F-test version of the rank-transform procedure showed similar power for moderately-skewed distributions, but for strongly skewed distributions the F-test showed much better power. The performance of the other nonparametric tests depended heavily on sample size. Based on these results, the F-test version of the rank-transform procedure is recommended for the single-factor repeated measures model.Keywords
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