Item response theory has become an essential component in the toolkit of every researcher in the behavioral sciences. It provides a powerful means to study indi

Item response theory (IRT) has moved beyond the confines of educational measurement into assessment domains such as personality, psychopathology, and patient-re

This comprehensive Handbook focuses on the most used polytomous item response theory (IRT) models. These models help us understand the interaction between exami

Drawing on the work of internationally acclaimed experts in the field, Handbook of Item Response Theory, Volume One: Models presents all major item response mod

Drawing on the work of internationally acclaimed experts in the field, Handbook of Item Response Theory, Volume 3: Applications presents applications of item re