Evaluating the Magnitude of Differential Item Functioning in Polytomous Items
Evaluating the Magnitude of Differential Item Functioning in Polytomous Items
复制标题
评估多分项中差异项功能的大小
DOI：
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Dorothy T. Thayer
中科院分区：
文献类型：
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作者：
R. Zwick;Dorothy T. Thayer
最近的几项研究调查了统计推理程序的应用，以分析在序数尺度上得分的多元测试项目的差异项目功能（DIF）。Mantel对Mantel- haenszel检验的扩展是用于此目的的几种假设检验方法之一。描述统计的发展，以表征多元测试项目的DIF受到较少的关注。作为朝这个方向迈出的一步，我们推导了Dorans和Schmitt提出的多元DIF指数的两个可能的标准误差公式。这些标准误差，以及相关的假设检验程序，通过应用于模拟数据进行评估。表现更好的标准误差是基于Mantel的超几何模型。另一种基于多项模型的标准误差往往会产生过小的值。
Several recent studies have investigated the application of statistical inference procedures to the analysis of differential item functioning (DIF) in polytomous test items that are scored on an ordinal scale. Mantel’s extension of the Mantel-Haenszel test is one of several hypothesis-testing methods for this purpose. The development of descriptive statistics for characterizing DIF in polytomous test items has received less attention. As a step in this direction, two possible standard error formulas for the polytomous DIF index proposed by Dorans and Schmitt were derived. These standard errors, as well as associated hypothesis-testing procedures, were evaluated though application to simulated data. The standard error that performed better is based on Mantel’s hypergeometric model. The alternative standard error, based on a multinomial model, tended to yield values that were too small.
影响因子：
1.9
作者：
ROBINS, J;BRESLOW, N;GREENLAND, S
通讯作者：
GREENLAND, S