Estimating the Covariance Matrix of the Random Components in the Mixed Model Appropriate to Single Sample Repeated Measures Data 1

Abstract

A method for estimating the variances and covariances of the random components of the mixed model, appropriate to single sample repeated measures data, is discussed. To illustrate its use, an example is presented which is concerned with the effect of syntactic and semantic violations of linguistic rules on the free recall of verbal materials. The procedures are based on the structural analysis of the covariance matrix of the repeated measures.