Correcting for differential item functioning in multi-level regression models in cross-national surveys

• Published in: Measurement : journal of the International Measurement Confederation Vol. 66; pp. 263 - 271
• Main Authors: Jehangir, Khurrem, van den Berg, Stephanie M., Glas, Cees A.W.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2015
• Subjects: Country specific item parameters; Differential item functioning; Generalised partial credit model; Partial credit model; PISA 2009; Differential item functioning; PISA 2009; Country specific item parameters; Generalised partial credit model; Partial credit model
• ISSN: 0263-2241; 1873-412X
• DOI: 10.1016/j.measurement.2015.02.019

•To assess the impact of DIF on background variables in a multi-level regression analysis.•Results show the impact of DIF cannot be ignored.•DIF is mitigated using country specific item parameters.•Different IRT models and person parameter estimation methods are used.•Impact of DIF is more for PCM t...