Unbalanced multivariate repeated measurements with a Kronecker product structured covariance matrix

Abstract

In this article we consider a set of repeated measurements on p variables on each of the n individuals. Thus, data on each individual is unbalanced data. The n individuals themselves may be divided and randomly assigned to g groups. We test the usual hypotheses and studied the likehood ratio test of this test ,assuming that the data on an individual has a covariance matrix which is a Kronecker product of two positive definite matrices.