[in Japanese]

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This study was an attempt, to analyze the main factors when commercial tennis clubs select the target playing an important part of their marketting strategy. To od this, two commercial tennis clubs were chosen which remarkably differ in the level of membership fee: Club A charges a comparatively low membership fee and Club B charges a comparatively expensive one- The member of these two clubs were compared with each other, by way of a written questionnaire, as regards their personal properties and views. 220 samples were collected subsequently analyzed. 90 from the members of Club A. the rest from the members of Club B. The main results are as follows: 1. The two groups show remarkable differences in such demographic factors as income and occupation. But. they show little differences in factors about needs and views of sports. 2. As for opinions of the service provided in the tennis clubs, members of Club A tend to think highly practical factors such as the fee of membership and business hours of the club, where as members of Club B tend to put an emphasis on marginal factors such as the quality of facilities and services. These results show that it is necessary to consider not only income but occupation and opinions of the service for the target selection of commercial tennis clubs.

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The purpose of this study is to investigate the method of setting standards for high jump suitable for individual student by making clear from instructive viewpoint the correlation between his record and physical make and strength. The results of the study obtained were as follows. 1. Height and 50m dash-time of individual student proved to be important factors in determing record in all the grades. Especially, 50m dash-time in all the grades is ackowiedged to be the most important factor. 2. The method of setting standards (Y cm) high jump, of which height (X1 cm) and 50m dash-time (X2 sec) are the two individual conditions, was obtained : The equation of multiple regression is as follows; Y=O.5(X1)-10(X2)+120 Constant(120) is subject to change according to the ability of individual student. 3. Effectiveness of the nomogram made by the equation of multiple regression is demonstrated by applying it to the instruction of the fifth and sixth graders at the elementary school.

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