This article unifies all the information of characteristics of attention to an integrated exponential endowed with value of assessment ; adopts idb experimental procedure to pursue the process of college students ' choice of pe ; probes into the influnce of characteristics of attention on college students ' option of pe 本文将体育选修课程的不同关注特性信息整合成一个综合指数并赋予评价值和权重,采用idb实验程序追踪大学生体育课程选修的抉择过程,探索关注特性对大学生体育课程选修的影响。