Analysis of repeated measures under unequal variances

Problem of making inferences on a widely used repeated measures model is considered without the assumption of equal error variances. By taking the generalized approach to making statistical inference, we derive necessary formulae to compute exact generalized p -values for testing the equality of treatment effects, occasion effects, and their interactions. We also provide formulae for making inferences about the variance components of the model. Advantage of the generalized p -values over the classical F-test is demonstrated by means of an example.