The use of various physiological tests and measurements accurately predicts the performance ratings of female athletes. A study involving 180 female intercollegiate volleyball players, 142 female intercollegiate basketball players, and 115 female college-age nonathletes yielded a set of statistical differentials concerning arm length, lean weight ratio to fat weight ratio, leg strength, and running speed. On the basis of the statistical data alone, researchers were able to successfully classify the test subjects into the appropriate category of volleyball player, basketball player, or nonathlete. Tests of this kind are of interest to sports personnel for use in recruitment and training decision-making. (LH)