高校野球における監督のコンピテンシーに関する研究

Abstract

This study was conducted to examine the competency of Kokoyakyu (Japanese high-school baseball) managers by developing and then applying a suitable measurement scale. First, we interviewed 6 Kokoyakyu managers, identifying 245 competency items. To categorize these items, one professor and 4 graduate students in sport sociology conducted a panel discussion. This yielded 48 competency items that were divided into 10 categories. Second, to appraise the reliability and validity of the resulting scale, we sent questionnaires to 1,000 managers, and received 421 replies. Item-total correlation analysis, exploratory factor analysis, and confirmatory factor analysis revealed 6 factors comprising 24 competency items: (1) trust relationship (6 items), (2) powers of observation (4 items), (3) educational guidance (3 items), (4) autonomy support (4 items), (5) relationship of supporters (3 items), and (6) skill and tactics instruction (4 items). The indices of model data fit were χ2/df=1.72, GFI=.87, CFI=.90, and RMSEA=.058. Assessment of construct validity comprised 3 components: convergent validity (Cronbach's alpha, average variance extracted, and construct reliability), discriminant validity, and content validity. The scale was observed to be reliable and valid. Comparison of the scale based on managers' profiles indicated significant differences based on team results, experience in developing players on the path to professional baseball, and years of experience.