Abstract
The authors carried out a test of mental fitness for action requiring quickness on fifty boy students of a high school (Matsuyama High School, Saitama Prefecture). The test method used is a sort of the measurement of complex reaction time with visual stimulus, which was reported by Matumoto et al. The test was done one time a day, and over 30 test for every subject as a rule.
Subjects employed in this test were members of the tennis, pingpong or fencing (kendo) clubs, and also two groups who made good or bad school records. Their scores of the test was estimated in relation to their masterly ability of sports in each club and to the school records. The results were the following.
1. The score of the test in progress of skillness was better on the boy students than the average score of the general subjeccts including men and women of young and old.
2. The score of the test for individual student was in close relation with his school records. The average acore of the ten boys having the best school records was definitely distinctive with tthat of the ten boys having low records.
3. With the score of the test of each boy, one could be assumable quite well on his masterly ability of sports, especially tennis, pingpong or fencing (kendo) and others.
