Open AccessRECOMMENDATIONS FOR CONDUCTING DIFFERENTIAL ITEM FUNCTIONING (DIF) ANALYSES FOR STUDENTS WITH DISABILITIES BASED ON PREVIOUS DIF STUDIES
Author(s) -
Buzick Heather,
Stone Elizabeth
Publication year - 2011
Publication title -
ets research report series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.235
H-Index - 5
ISSN - 2330-8516
DOI - 10.1002/j.2333-8504.2011.tb02270.x
Subject(s) - differential item functioning , psychology , item response theory , sample (material) , differential (mechanical device) , statistical analysis , descriptive statistics , psychometrics , applied psychology , clinical psychology , statistics , mathematics , chemistry , chromatography , engineering , aerospace engineering
The purpose of this study is to help ensure that strategies for differential item functioning (DIF) detection for students with disabilities are appropriate and lead to meaningful results. We surveyed existing DIF studies for students with disabilities and describe them in terms of study design, statistical approach, sample characteristics, and DIF results. Based on descriptive and graphical summaries of previous DIF studies, we make recommendations for future studies of DIF for students with disabilities.