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目的 :确定出消除工作记忆测验练习效应影响的最少练习遍数。方法 :选择 4名年龄 19～ 2 4岁的大学生 ,分别在连续两天的上午 8:3 0～ 11:3 0 ,下午 2 :3 0～ 5 :3 0和晚上 7:3 0～ 9:3 0进行多次练习 ,并收集练习成绩的数据。结果 :在实际分析的 4名被试数据中 ,各工作记忆分测验 (两种类型 ,三种难度水平 )中均存在明显的练习效应 ,练习成绩前后比较均达到了显著性水平 (P <0 0 5 )。结论 :①练习效应只是影响被试测验成绩变化的因素之一 ;②为了消除正式测验时出现练习效应所导致的自变量混淆 ,建议正式测验时六项分测验的练习遍数均不得少于 18遍。
Purpose: To identify the minimum number of exercises to eliminate the effect of exercise memory test exercises. Methods: Four college students aged 19 ~ 24 years old were enrolled in this study. They were selected from 8: 30 ~ 11: 30, 2: 30 ~ 5: 30 and 2: 3 0 Conduct multiple exercises and collect data on practice scores. Results: Among the four subjects tested, there were obvious practicing effects in each working memory test (two types and three difficulty levels), all of which reached significant levels before and after the practice scores (P <0 0 5). Conclusion: ①Exercise effect is only one of the factors that affect the test scores; ②In order to eliminate confusion of arguments caused by the practice effect in the formal test, it is suggested that the number of practice of the six sub-tests in the formal test should not be less than 18 all over.