社会教育学 - 2026 进行中

科目: 社会教育学
级别: XII
类别: 大学生
测试题目: 英语
问题示例: A longitudinal study reports that participants improved on a validated well-being scale, but attrition was substantially higher in the intervention group than in the comparison group. Which threat to validity is most salient? Instrumentation drift, Regression to the mean, Differential attrition bias, Observer expectancy effect