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Direct linkMagnus, Brooke E.; Thissen, David – Journal of Educational and Behavioral Statistics, 2017
Questionnaires that include items eliciting count responses are becoming increasingly common in psychology. This study proposes methodological techniques to overcome some of the challenges associated with analyzing multivariate item response data that exhibit zero inflation, maximum inflation, and heaping at preferred digits. The modeling…
Descriptors: Item Response Theory, Models, Multivariate Analysis, Questionnaires
