1. Office of Academic Computing and Biostatistics , University of Texas Medical Branch , Galveston, TX, 77550;2. Department of Surgery , University of Texas Medical Branch , Galveston, TX, 77550
Abstract:
Two methods of estimating the intraclass correlation coefficient (p) for the one-way random effects model were compared in several simulation experiments using balanced and unbalanced designs. Estimates based on a Bayes approach and a maximum likelihood approach were compared on the basis of their biases (differences between estimates and true values of p) and mean square errors (mean square errors of estimates of p) in each of the simulation experiments. The Bayes approach used the median of a conditional posterior density as its estimator.