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A Short Guide to Item Response Theory Models

By Gerhard Tutz

Product Image: A Short Guide to Item Response Theory Models

A Short Guide to Item Response Theory Models

By Gerhard Tutz

0 - Default Title
Description
This book presents foundational concepts, essential principles, and practical applications of Item Response Theory (IRT). It provides a structured survey of diverse models that have been put forth, emphasizing both their differences and commonalities. The main focus is on modern latent trait theory models which provide measurement tools that clearly separate between person abilities and item parameters. The topics covered include the binary Rasch model, its extensions and alternative binary models, ordinal models and their extensions that account for response styles, the thresholds model, classical test theory, response models for count data, differential item functioning, and explanatory item response models. Tree-based item response models, typically not found in classical IRT textbooks, are also addressed. Applications of the models are illustrated on several data sets from differing areas, showing how models can be fitted and compared. All examples have been computed using R. Code snippets are provided, and the full R code for most of the examples is available online. The book is aimed at graduate students, applied statisticians, and researchers working in psychometrics, educators, and anyone curious about modeling strategies that enhance the precision and validity of their measurement tools. It serves as an introductory guide for beginners while also providing a resource for those seeking an overview of the plethora of available IRT models.
Product details
Number of Pages:
268
Release Date:
2025-07-03
Publication Date:
2025-07-03
Publisher:
Springer Nature Switzerland
Languages:
Original: English
ISBN10:
3031872703
ISBN13:
9783031872709
GPSR Manufacturer Reference:
[email protected]
Weight:
569 g
Height:
160 cm
Width:
241 cm
Thickness:
21 cm
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