Contents: T.A. Baumgartner, Editor's Note. T.M. Wood, Guest Editor's Note. R.J. Stiggins, Dealing With the Practical Matter of Quality Performance Assessment. R.W. Christina, Concerns and Issues in Studying and Assessing Motor Learning. D.L. Gill, Measurement, Statistics, and Research Design Issues in Sport and Exercise Psychology. C.R. James, B.T. Bates, Experimental and Statistical Design Issues in Human Movement Research. M. Bouffard, Using Old Research Ideas to Study Contemporary Problems in Adapted Physical Activity. Z.V. Tran, Estimating Sample Size in Repeated-Measures Analysis of Variance.