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stat.AP2026
Dependencies in Item-Adaptive CAT Data and Differential Item Functioning Detection: A Multilevel Framework
Dandan Chen Kaptur, Justin Kern, Chingwei David Shin +1
Differential item functioning (DIF) detection is an important yet understudied problem in computerized adaptive testing (CAT). In this article, we proposed a two-level logistic mod…
stat.AP2025
Examining Differential Item Functioning (DIF) in Self-Reported Health Survey Data: Via Multilevel Modeling
Dandan Chen Kaptur, Yiqing Liu, Bradley Kaptur +4
Few health-related constructs or measures have received a critical evaluation in terms of measurement equivalence, such as self-reported health survey data. Differential item funct…
stat.AP2024
Evaluating Four Methods for Detecting Differential Item Functioning in Large-Scale Assessments with More Than Two Groups
Dandan Chen Kaptur, Jinming Zhang
This study evaluated four multi-group differential item functioning (DIF) methods (the root mean square deviation approach, Wald-1, generalized logistic regression procedure, and g…