个体的成就行为受成就动机、避免失败的动机和外部报偿的影响.中等难度的任务提供了最大的诱因价值和成功的可能性.学生成就动机的差异影响着学习活动和成绩.用改变归因的方法,可端正学习成绩差的学生的学习动机. The individual’s achievement behavior is affected by achievement motivation, motivation to avoid failure and external compensation.Middle-difficulty task provides the greatest incentive value and the possibility of success.The difference of student achievement motivation affects learning activities and grades.Changes attribution Approach, you can correct the learning performance of poor students motivation to learn.