Repeated measures analysis of variance

Analysis of variance of measures that are repeatedly observed on the same respondents, who thus serve as their own controls.  Such a within-subject design has two advantages: more data per participant and more power because between-subject differences can be factored out of the error term.  An important assumption in such designs is that of sphericity. 

See Analysis of variance (ANOVA), Bock’s profile analysis, Compound symmetry, Error term, Latent growth model, Mauchly test, Mixed-effects models, Sphericity, Sphericity assumption