目的：團隊是由個人組成，團隊運作的綜效來自於團隊中個體彼此間適度的配合，每個個體本身的人格特質是影響其配合團隊合作的重要因素，其中又以外傾支配性佔最重要地位。本研究希望藉由探討高中排球選手人格特質中的外傾支配性，對於團隊運作傾向的影響。方法：本研究以288位參加2014年高中甲級排球聯賽男女選手為樣本，以Costa與McCrae編製NEO-FFI (NEO-Five Factor Inventory) 人格特質量表之中文翻譯問卷來測量人格特質；並參考張同廟等之團隊運作量表評估團隊運作傾向，所得資料以t檢定、Pearson相關分析、ANOVA及事後比較加以分析。結果：排球選手的外傾支配性與性別、球齡沒有顯著相關，但會因比賽角色、上場類別而有顯著差異，其中以自由球員與先發選手有較明顯的外傾支配性 (P值分別為0.02、0.03) 。此外，排球選手外傾支配性與團隊運作均呈現顯著正相關 (P值小於0.001) 。結論：經由本研究之研究結果發現，外傾支配性高的排球選手有較高的團隊運作的傾向，可作為團隊合作型運動指導教練選才之參考。 A Team consists of individuals working together, each playing their own part. The characteristic of each individual may affect the team performance. Often the player with the dominant personality plays the most important role in the team. Our study intends to investigate the role of those with a dominant personality in the team cooperation tendency of a high school volleyball team. Method：We questioned 288 members of the 2014 high school volley ball semi-final competition participants. We translated the Costa & McCrae NEO-FFI (NEO-Five Factor Inventory) questionnaire to Chinese for analyzing the personality traits of the 288 participants. We also refer to the team cooperation measurement form developed by Mr Zhang. The data we have obtained from these questionnaires and forms were analyzed by Independent t test, Pearson analysis, ANOVA and Post hoc comparisons. Result：The dominant personality did not show any significant correlation to sex or the years of volleyball played. But will vary with the position played in the game. There is an apparent more dominant personality in the free agent player and the starting player. (p＝0.02 and 0.03 respectively) . There is also a positive correlation between dominant personality and team cooperation tendency (p＝0.001) . Conclusion： The players with the dominant personality show a better team collaboration. This may be an important characteristic the coach should look for in his player.