A commentary is made on a previously published article concerning testing the equivalence of covariance matrices. An error in the previous article (by the same authors) is pointed out and the consequences of the error are discussed. (JKS)

This guide to program evaluation presents questions that illuminate aspects of the evaluation process. Issues to consider in program evaluation are: (1) the intended results of the program; (2) hypotheses about the possible results of the program; (3) the types of data that will indicate achievement of the intended results and the variables that…

This book focuses on the relevance of statistics in the day-to-day lives of principals and teachers. The step-by-step guide to using existing school data can help school leaders make more appropriate and effective decisions. The information is presented with easy-to-follow instructions, illustrations, and pertinent examples. The chapters are: (1)…