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Direct linkWu, Qian; De Laet, Tinne; Janssen, Rianne – Journal of Educational Measurement, 2019
Single-best answers to multiple-choice items are commonly dichotomized into correct and incorrect responses, and modeled using either a dichotomous item response theory (IRT) model or a polytomous one if differences among all response options are to be retained. The current study presents an alternative IRT-based modeling approach to…
Descriptors: Multiple Choice Tests, Item Response Theory, Test Items, Responses
