Because of the entrepreneurial decision-making with high risk, how to improve the quality of the entrepreneurial team's risk decision-making is an issue deserving of study. In this study, the term of the modification effect during the entrepreneurial team's risk decision-making is put forward to measure the process quality of team decision-making. Through the empirical investigation of 46 entrepreneurial teams of university students, the function of group cohesiveness and member's involvement acting on entrepreneurial team's risk decision-making's modification effect was explored. It is discovered that team's task cohesiveness shows a significant positive impact on team's decision-making's modification effect, and the member's involvement is an important moderating factor between the two variables of task cohesion and modification effect value, that is to say, in the condition of high level of member's involvement, team's task cohesiveness has more stronger promotion function toward team's decision-making's modification effect; but team's interpersonal cohesiveness has little impact on team's decision-making's modification effect. On this basis, some suggestions relevant management measures to improve the quality of entrepreneurial team's risk decision-making were proposed.%创业决策具有高的风险性,如何提高创业团队风险决策的质量是一个值得探讨的问题.提出了创业团队风险决策的修正效应,以此衡量决策的过程质量,通过对46支大学生创业团队的实证研究,探究了群体凝聚力与决策过程中的成员参与度对团队风险决策修正效应的影响作用.结果显示:团队的任务凝聚力对团队决策的修正效应起到了显著的正向影响作用,成员参与度是两者关系的重要调节因素,在高的成员参与度下,任务凝聚力对团队决策的修正效应具有更大的促进作用；而团队的人际凝聚力对团队决策的修正效应没有显著影响作用.在此基础上,对提高创业团队风险决策的质量提出了相应的管理建议.
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