政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/142014

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政大機構典藏 > 商學院 > 統計學系 > 期刊論文 > Item 140.119/142014

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/142014

Title:	DIF Detection Using Multiple-Group Categorical CFA with Minimum Free Baseline Approach
Authors:	張育瑋 Chang, Yu-Wei Huang, Wei-Kang;Tsai, Rung-Ching
Contributors:	統計系
Date:	2015-06
Issue Date:	2022-09-21 11:44:57 (UTC+8)
Abstract:	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.
Relation:	Journal of Educational Measurement, 52(2), 181-199
Data Type:	article
DOI 連結:	https://doi.org/10.1111/jedm.12073
DOI:	10.1111/jedm.12073
Appears in Collections:	[統計學系] 期刊論文

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