Procedures for the analysis of differential item functioning (DIF) for small sample sizes
Procedures for the analysis of differential item functioning (DIF) for small sample sizes
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DOI：
10.1177/0163278705278276
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发表时间：
2005-09-01
影响因子：
2.9
通讯作者：
Gershon, R
中科院分区：
文献类型：
--
作者：
Lai, JS;Teresi, J;Gershon, R
具有差异项功能（DIF）的项显示不同的统计属性，取决于匹配的变量。DIF在测量中的存在可以使医学结果研究的结论无效。已经制定了许多办法，在许多领域，包括教育和与健康有关的生活质量，审查家庭综合发展问题。研究界对选择一种最佳方法几乎没有共识，大多数方法需要大样本量。本文描述了一些用小样本检查DIF的方法（例如，少于200）。
An item with differential item functioning (DIF) displays different statistical properties, conditional on a matching variable. The presence of DIF in measures can invalidate the conclusions of medical outcome studies. Numerous approaches have been developed to examine DIF in many areas, including education and health-related quality, of life. There is little consensus in the research community regarding selection of one best method, and most methods require large sample sizes. This article describes some approaches to examine DIF with small samples (e.g., less than 200).