Rh. Randles et Pw. Gieser, Distribution-free tests for main effects and interactions in multivariate repeated measures designs, J NONPARA S, 12(6), 2000, pp. 807-817
Nonparametric distribution-free tests for interactions and main effects are
described for certain factorial repeated measures designs. These tests are
created by applying nonparametric multivariate one-sample tests to contras
ts in the repeated measures. The performance of the tests are compared to A
NOVA and to Hotelling's T-2 computed on the contrasts.