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  3. Testlet Response Theory and Its Applications
  • Cited by 223
Publisher:
Cambridge University Press
Online publication date:
January 2010
Print publication year:
2007
Online ISBN:
9780511618765
DOI:
https://doi.org/10.1017/CBO9780511618765
Subjects:
Statistics for Social Sciences, Behavioral Sciences and Law, Statistics and Probability
Information

Book description

The measurement models employed to score tests have been evolving over the past century from those that focus on the entire test (true score theory) to models that focus on individual test items (item response theory) to models that use small groups of items (testlets) as the fungible unit from which tests are constructed and scored (testlet response theory, or TRT). In this book, the inventors of TRT trace the history of this evolution and explain the character of modern TRT. Written for researchers and professionals in statistics, psychometrics, and educational psychology, the first part offers an accessible introduction to TRT and its applications. The second part presents a comprehensive, self-contained discussion of the model couched within a fully Bayesian framework. Its parameters are estimated using Markov chain Monte Carlo procedures, and the resulting posterior distributions of the parameter estimates yield insights into score stability that were previously unsuspected.

Reviews

'… a very accessible and incredibly delightful book to read. … an excellent resource … a valuable addition to the bookshelves of teachers, students and researchers in testing and measurement.'

Source: Psychometrika

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