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    题名: DIF Detection Using Multiple-Group Categorical CFA with Minimum Free Baseline Approach
    作者: 張育瑋
    Chang, Yu-Wei
    Huang, Wei-Kang;Tsai, Rung-Ching
    贡献者: 統計系
    日期: 2015-06
    上传时间: 2022-09-21 11:44:57 (UTC+8)
    摘要: The aim of this study is to assess the efficiency of using the multiple-group categorical confirmatory factor analysis (MCCFA) and the robust chi-square difference test in differential item functioning (DIF) detection for polytomous items under the minimum free baseline strategy. While testing for DIF items, despite the strong assumption that all but the examined item are set to be DIF-free, MCCFA with such a constrained baseline approach is commonly used in the literature. The present study relaxes this strong assumption and adopts the minimum free baseline approach where, aside from those parameters constrained for identification purpose, parameters of all but the examined item are allowed to differ among groups. Based on the simulation results, the robust chi-square difference test statistic with the mean and variance adjustment is shown to be efficient in detecting DIF for polytomous items in terms of the empirical power and Type I error rates. To sum up, MCCFA under the minimum free baseline strategy is useful for DIF detection for polytomous items.
    關聯: Journal of Educational Measurement, 52(2), 181-199
    数据类型: article
    DOI 連結: https://doi.org/10.1111/jedm.12073
    DOI: 10.1111/jedm.12073
    显示于类别:[統計學系] 期刊論文

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