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The purpose of this study is to examine whether or not the frequency polygons of the three types of fundamental motor skills in senior high school pupils, 15 through 17 years old 6341 boys and 2441 gi...rls are "bell-shaped" normal curves. The record of 50m dash (running skill), running long jump (jumping skill), and handball distance throw (throwing skill) of the pupils of the one prefectural high school were measured in the adminlstration by the physical educator within the several weeks of new school life. The dataset were constructed by 9 or 8 cohorts (entrauce years, 1971 to 1979) by 3 ages (15 to 17 years old), which were calleld. cohort-sequential study of Schaie's trifactorial design. Several statistics of each skill were given from the raw data and the frequency table by the second to the fourth order moments and percentiles. The g1, g1', SKQ, SKD mean of skewness of the distribution, otherwise g2, g2' and kappa mean of kurtosis, respectively. The results obtained were as follows. 1) The significance of age effect by sex recognized on all of skills except the jumping and throwing skills of girls. 2) In both sexes, generally speaking, the positive skewness were obsereved in each fundamental motor skill from momentum and quantiles. In some cases, the skewness of jumping skills has tendency to converge to zero and it was not significant. Therefore, these may be identified the normalty. 3) The tendency to convergence to zero in kurtosis were inferior to skewness of each skill in both systems. The features of three types motor skills have the leptokurtic type. That is, they have a long tailness.続きを見る
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