A comparison of three sets of criteria for determining the presence of differential item functioning using ordinal logistic regression
A comparison of three sets of criteria for determining the presence of differential item functioning using ordinal logistic regression
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DOI：
10.1007/s11136-007-9185-5
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发表时间：
2007-01-01
影响因子：
3.5
通讯作者：
Teresi, Jeanne A.
中科院分区：
文献类型：
--
作者：
Crane, Paul K.;Gibbons, Laura E.;Teresi, Jeanne A.
研究背景：目前已有多种技术被用来检测项目功能差异（DIF），包括有序逻辑回归（OLR）。本研究比较了不同的标准，以确定是否项目有DIF using OLR. ObjectiveTo比较和对比的结果，从三个不同的标准检测DIF使用OLR。一般痛苦和身体功能：评价与5个协变量相关的DIF项目：年龄、婚姻状况、性别、种族和西班牙裔。研究设计横断面研究。受试者1，714例癌症或艾滋病毒/艾滋病患者。措施共23个项目解决身体功能和15个项目解决一般困扰，从154个项目的游泳池，从四个不同的健康-结果三套标准在定性和定量上产生了不同的结果。仅基于统计显著性的标准在几乎所有项目中检测到DIF，而基于幅度的替代标准在少得多的项目中检测到DIF。通过使用人口统计学组特定项目参数对DIF的解释对个人得分的影响可以忽略不计，但种族除外。
Background Several techniques have been developed to detect differential item functioning (DIF), including ordinal logistic regression (OLR). This study compared different criteria for determining whether items have DIF using OLR.Objectives To compare and contrast findings from three different sets of criteria for detecting DIF using OLR. General distress and physical functioning : items were evaluated for DIF related to five covariates: age, marital status, gender, race, and Hispanic origin.Research design Cross-sectional study.Subjects 1,714 patients with cancer or HIV/AIDS.Measures A total of 23 items addressing physical functioning and 15 items addressing general distress were selected from a pool of 154 items from four different health-related quality of life questionnaires.Results The three sets of criteria produced qualitatively and quantitatively different results. Criteria based on statistical significance alone detected DIF in almost all the items, while alternative criteria based on magnitude detected DIF in far fewer items. Accounting for DIF by using demographic-group specific item parameters had negligible effects on individual scores, except for race.