An intuitive intro to IRT that minimizes equations and maximizes the use of graphs and analogies to psychologicalprinciples.Includes small-scale cognitive applications. Ideal for psychology professionals, behavioral scientists, and grad students.

Susan E. Embretson Georgia Institute of Technology, Atlanta, USA. Steven P. Reise University of California, Losa Angeles, USA

Contents: Preface. Part I: Introduction. Introduction. Part II: Item Response Theory Principles: Some Contrasts and Comparisons. The New Rules of Measurement. Item Response Theory as Model-Based Measurement. Part III: The Fundamentals of Item Response Theory. Binary IRT Models. Polytomous IRT Models. The Trait Level Measurement Scale: Meaning, Interpretations, and Measurement-Scale Properties. Measuring Persons: Scoring Examinees With IRT Models. Calibrating Items: Estimation. Assessing the Fit of IRT Models. Part IV: Applications of IRT Models. IRT Applications: DIF, CAT, and Scale Analysis. IRT Applications in Cognitive and Developmental Assessment. Applications of IRT in Personality and Attitude Assessment. Computer Programs for Conducting IRT Parameter Estimation.