Item responses to a questionaire on verbal aggression. These data are used throughout De Boeck and Wilson, Explanatory Item Response Models (Springer, 2004) to illustrate various forms of item response models.
A data matrix with 316 persons, 24 three-category items, and two person covariates (trait anger and gender).
De Boeck and Wilson (2004), Explanatory Item Response Models, Springer.
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