A mixture item response model is proposed for investigating individual differences in the selection of response categories in multiple-choice items. The model accounts for local dependence among ...
Item Response Theory (IRT) has emerged as a pivotal framework for the measurement and analysis of latent traits in educational and psychological assessments. By modelling the probability that a ...
Background: Statistical models based on item response theory were used to examine (a) the performance of individual Positive and Negative Syndrome Scale (PANSS) items and their options, (b) the ...
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