This book develops an intuitive understanding of IRT principles through the use of graphical displays and analogies to familiar psychological principles. It surveys contemporary IRT models, estimation methods, and computer programs. Polytomous IRT models are given central coverage since many psychological tests use rating scales.

Ideal for clinical, industrial, counseling, educational, and behavioral medicine professionals and students familiar with classical testing principles, exposure to material covered in first-year graduate statistics courses is helpful. All symbols and...

This volume brings together leading measurement researchers and practitioners from various areas to discuss new developments in test development, administration, scoring and interpretation. Psychometricians and educational measurement specialists should find this book to be a valuable tool.