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ERIC Number: EJ929735
Record Type: Journal
Publication Date: 2011
Pages: 18
Abstractor: As Provided
Reference Count: 22
ISBN: N/A
ISSN: ISSN-0022-0655
A Nested Logit Approach for Investigating Distractors as Causes of Differential Item Functioning
Suh, Youngsuk; Bolt, Daniel M.
Journal of Educational Measurement, v48 n2 p188-205 Sum 2011
In multiple-choice items, differential item functioning (DIF) in the correct response may or may not be caused by differentially functioning distractors. Identifying distractors as causes of DIF can provide valuable information for potential item revision or the design of new test items. In this paper, we examine a two-step approach based on application of a nested logit model for this purpose. The approach separates testing of differential distractor functioning (DDF) from DIF, thus allowing for clearer evaluations of where distractors may be responsible for DIF. The approach is contrasted against competing methods and evaluated in simulation and real data analyses.
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A