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Emons, Wilco H. M.; Sijtsma, Klaas; Meijer, Rob R. – Multivariate Behavioral Research, 2004
The person-response function (PRF) relates the probability of an individual's correct answer to the difficulty of items measuring the same latent trait. Local deviations of the observed PRF from the expected PRF indicate person misfit. We discuss two new approaches to investigate person fit. The first approach uses kernel smoothing to estimate…
Descriptors: Probability, Simulation, Item Response Theory, Test Items