IRT‐based response style models and related methodology: Review and commentary

Abstract We provide a review and commentary on recent methodological research related to item response theory (IRT) modelling of response styles in psychological measurement. Our review describes the different categories of IRT models that have been proposed, their associated assumptions and extensions, and the varying purposes they can serve. Our review also seeks to highlight some of the fundamental challenges shared across models in the study and statistical control of response style behaviour. We conclude with some thoughts regarding future directions, including the potential uses of response style models for sensitivity analysis and informed survey design and administration.