In this study, a scale was used to measure a sample of 278 students selected from a middle school by randomly sampling and selected 80 students who have the similar score of GSE.

• 本研究采用随机抽样法，选取中等数学成绩的初二学生278名，然后运用有关问卷，从中筛取自我效能得分相当的被试80名作为被试。