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Differential Item Functioning Analysis by Applying Multiple Comparison Procedures

机译:应用多个比较程序进行差异项功能分析

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摘要

Analysis within a Rasch measurement framework aims at development of valid and objective test score. One requirement of both validity and objectivity is that items do not show evidence of differential item functioning (DIF). A number of procedures exist for the assessment of DIF including those based on analysis of contingency tables by Mantel-Haenszel tests and partial gamma coefficients. The aim of this paper is to illustrate Multiple Comparison Procedures (MCP) for analysis of DIF relative to a variable defining a very large number of groups, with an unclear ordering with respect to the DIF effect. We propose a single step procedure controlling the false discovery rate for DIF detection. The procedure applies for both dichotomous and polytomous items. In addition to providing evidence against a hypothesis of no DIF, the procedure also provides information on subset of groups that are homogeneous with respect to the DIF effect. A stepwise MCP procedure for this purpose is also introduced.
机译:Rasch测量框架内的分析旨在发展有效和客观的测试分数。有效性和客观性的一项要求是,项目不显示差异项目功能(DIF)的证据。存在许多用于评估DIF的程序,包括那些基于通过Mantel-Haenszel测验的列联表分析和部分伽马系数的程序。本文的目的是说明相对于定义大量组的变量而对DIF进行分析的多重比较程序(MCP),其中关于DIF效果的顺序不清楚。我们提出了控制DIF检测错误发现率的单步过程。该程序适用于二分和多义项目。除了提供针对没有DIF假设的证据外,该程序还提供有关DIF效果均一的组子集的信息。还介绍了用于此目的的逐步MCP程序。

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  • 来源
    《Journal of applied measurement》 |2015年第1期|13-23|共11页
  • 作者

    Paolo Eusebi; Svend Kreiner;

  • 作者单位

    Regional Health Authority of Umbria, Italy University of Perugia, Italy,Regional Health Authority of Umbria, Via M.Angeloni, 61, 06124 Perugia, Italy;

    University of Copenhagen, Denmark;

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  • 正文语种 eng
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