Ccmpiling a Chart on the Regression T-Scores of Motor Performance

Abstract

Some motor performances have a high correlation with a performer's body-build which is determined by his hereditary factors and not directly related to his learning. Therefore, in school physical education, if it wants to evaluate students in a fair manner, it is necessary to take into account their body builds. In this study, by utilizing T. Mizuno's formula (Regression T-Score=50+(Y-Y^^)_<s_y.x>/1O) for the regression evaluation of motor ability in relation to height or weight, the investigators calculated regression T-Scores of achievements in high jump of junior high school boys as well as T-Scores, and ompared with each other in order to find which woulpcbe better fitted to the evaluation of the performances in high Jump and compiled a chart, for thepractical convenience, of five-rank regression T-Score evaluation by every one contriteness of height increase. In this case,, grades of 24% of the students evaluated by the T-Score method were bettered, 32% of them mere Iowered, aed the aest Were unchanged.