Title Differential Item Functioning: Beyond validity evidence based on internal structure
Authors Gomez-Benito, Juana, Sireci, Stephen, Padilla, Jose-Luis, Dolores Hidalgo, M., BENÍTEZ BAENA, ISABEL, BENÍTEZ BAENA, ISABEL
External publication No
Means Psicothema
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 2
JCR Impact 1.55100
SJR Impact 0.64100
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040820427&doi=10.7334%2fpsicothema2017.183&partnerID=40&md5=3262a1fa3f64abb30a97e676c9226de4
Publication date 01/02/2018
ISI 000419998900016
Scopus Id 2-s2.0-85040820427
DOI 10.7334/psicothema2017.183
Abstract Background: In the latest release of the Standards for Educational and Psychological Testing, Differential Item Functioning (DIF) is considered as validity evidence based on internal structure. However, there are no indications of how to design a DIF study as a validation study. In this paper, we propose relating DIF to all sources of validity evidence, and provide a general conceptual framework for transforming "typical" DIF studies into validation studies. Method: We perform a comprehensive review of the literature and make theoretical and practical proposals. Results: The article provides arguments in favour of addressing DIF detection and interpretation as validation studies, and suggestions for conducting DIF validation studies. Discussion: The combination of quantitative and qualitative data within a mixed methods research perspective, along with planning DIF studies as validation studies, can help improve the validity of test score interpretations.
Keywords DIE; validity; sources of validity evidence
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