Mixed Methods for Psychological Measurement: Using Critical Realism to Reframe Incommensurability

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David F. Feldon (Utah State University, USA)

Mixed Methods for Psychological Measurement

Using Critical Realism to Reframe Incommensurability

David F. Feldon (Utah State University, USA)

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English

Routledge
25 December 2025

Social research & statistics; Psychological testing & measurement

Series: Routledge Research in Psychology

This book presents a groundbreaking approach to measurement from a mixed methodological perspective, reframing the concept of incommensurability to harmonize qualitative and quantitative data in analyses.

It draws upon critical realism, latent variable theory, and phenomenography to illustrate how idiographic data can be incorporated into the development and validation of psychological measures. The text delves into foundational methodological assumptions, explores item and instrument validation techniques, and addresses issues of invariance. It further elucidates the application of idiographic strategies in conjunction with differential item function (DIF), item parameter drift (IPD), latent growth models, and the evaluation of measurement models. This innovative framework offers researchers robust tools for integrating diverse data types, enhancing the validity and reliability of their findings, and articulates ways in which these tools can be integrated into critical quantitative perspectives. It is an invaluable resource for anyone seeking to deepen their understanding of mixed methodologies and measurement.

It will appeal to scholars, researchers, and students whose goals are to integrate different modes of data, examine alternative perspectives on measurement, and apply new tools to psychological and social research.

By: David F. Feldon (Utah State University USA)
Imprint: Routledge
Country of Publication: United Kingdom
Dimensions: Height: 229mm, Width: 152mm,
Weight: 400g
ISBN: 9780367701321
ISBN 10: 0367701324
Series: Routledge Research in Psychology
Pages: 204
Publication Date: 25 December 2025
Audience: College/higher education , Primary
Format: Paperback
Publisher's Status: Active

1. Nomothetic and Idiographic 2. Measurement of and Influences on Latent Constructs 3. Normalizing Error in Categorical Measurement 4. Quantitative Member Checking 5. Idiographic Measures 6. Idiographic Moderation in Measurement Models 7. A Critical Turn

David F. Feldon is a Professor of Instructional Technology and Learning Sciences in the Emma Eccles Jones College of Education and Human Services at Utah State University, USA.