英语 - 2026 进行中

科目: 英语
级别: XII
类别: 教师
测试题目: 英语
问题示例: In language assessment, what does differential item functioning (DIF) indicate? An item functions differently for examinees from different groups who have the same underlying ability level, An entire test produces different mean scores for two demographic groups, A test contains too few items to estimate an examinee’s ability reliably, An item has a statistically significant correlation with total test scores