实验以初中二年级学生为被试。
The participants were the second grade junior middle school students.
研究对象是山东曲阜师范大学附属中小学初中二年级的70 名学生，分高分和低分两组，各35 名学生。
The participants are 70 students from Middle School Affiliated to Qufu Normal University. They are divided into two groups: high score group and low score group. Each group has 35 students.
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