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ArtikelAddressing Score Bias and Differential Item Functioning Due to Individual Differences in Response Style  
Oleh: Bolt, Daniel M. ; Johnson, Timothy R.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Applied Psychological Measurement vol. 33 no. 5 (Jul. 2009), page 335-352.
Topik: multidimensional IRT; response style; extreme response style; differential item functioning; nominal response model
Fulltext: 335.pdf (348.64KB)
Isi artikelA multidimensional item response theory model that accounts for response style factors is presented. The model, a multidimensional extension of Bock’s nominal response model, is shown to allow for the study and control of response style effects in ordered rating scale data so as to reduce bias in measurement of the intended trait. In the current application, the model is also used to investigate response style as an underlying cause of differential item functioning. The approach is illustrated using the item responses of cigarette smokers to the Wisconsin Inventory of Smoking Dependence Motives, a self-report measure of tobacco dependence.
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