期刊名称：Journal of Modern Applied Statistical Methods
出版年度：2007
卷号：6
期号：2
页码：22
出版社：Wayne State University
摘要：Type I error rate of a structural equation modeling (SEM) approach for investigating differential item functioning (DIF) in short scales was studied. Muthén’s SEM model for DIF was examined using a covariance matrix (Jöreskog, 2002). It is conditioned on the latent variable, while testing the effect of the grouping variable over-and-above the underlying latent variable. Thus, it is a multiple-indicators, multiple-causes (MIMIC) DIF model. Type I error rates were determined using data reflective of short scales with ordinal item response formats typically found in the social and behavioral sciences. Results indicate Type I error rates for the DIF MIMIC model, as implemented in LISREL, are inflated for both estimation methods for the design conditions examined.
关键词：Type I Error; multiple-causes model for DIF; Monte Carlo simulation
