Abstract
Abstract An approximate likelihood ratio test statistic is proposed for testing the equality of several intraclass correlation coefficients when independent samples are drawn from multivariate normal populations. The asymptotic null and nonnull distributions of the proposed statistic are derived for the nonnormal populations. The corresponding results for sampling from multivariate normal and elliptic populations are given. Test procedures based on Fisher's z-transformation are also considered. Monte Carlo experiments are performed to examine the proposed tests.
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