Using Statistical Procedures to Identify Differentially Functioning Test Items
Using Statistical Procedures to Identify Differentially Functioning Test Items
复制标题
使用统计程序来识别功能差异的测试项目
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
K. Mazor
中科院分区:
文献类型:
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作者:
B. Clauser;K. Mazor
This module is intended to prepare the reader to use statistical proce dures to detect differentially functioning test items. 7b provide back ground, differential item functioning (DIF) is distinguished from item and test bias, and the importance of DIF screening within the overall test development process is discussed. The Mantel-Haenszel statistic, logistic regression, SIBTES'r, the Standardization procedure, and various IRT-based approaches are presented. For each of these proce dures, the theoretical framework is presented, the relative strengths and weaknesses of the method are highlighted, and guidance is pro vided for interpretation of the resulting statistical indices. Numerous technical decisions are required in order for the practitioner to appro priately implement these procedures. These decisions are discussed in some detail, as are the policy decisions necessary to implement an op erational DIF detection program. The module also includes an anno tated bibliography and a self-test.