• Summary
  • Contents
  • Subject index

The Handbook of Understanding and Measuring Intelligence provides an overview of recent studies on intelligence to help readers develop a sound understanding of results and perspectives in intelligence research. In this volume, editors Oliver Wilhelm and Randall W. Engle bring together a group of respected experts from two fields of intelligence research, cognition and methods, to summarize, review, and evaluate research in their areas of expertise. The chapters in this book present state-of-the-art examinations of a particular domain of intelligence research and highlight important methodological considerations, theoretical claims, and pervasive problems in the field.  

Item Response Theory and the Measurement of Cognitive Processes
Item response theory and the measurement of cognitive processes

In this chapter, the importance of item response theory (IRT) for understanding and measuring intellectual abilities is reviewed and evaluated. It will be argued that the beneficial impact of IRT has been on the side of measurement, where it provides enhanced technology for item generation and test assembly. In regards to understanding the structure of intelligence, IRT has improved the flexibility and precision of structural analysis by opening the classical factor-analytic methods to include nonlinear relations between categorical response variables and latent dimensions. In regards to understanding the processes underlying performance on intelligence tests, however, attempts that exist so far within the IRT framework are restricted to compensatory ...

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