Method Effects in Psychological Measurement

This book provides expert guidance to properly control for method effects and data distortions, helping researchers and practitioners to enhance their skills in psychological measurement..

- Provides the accumulated knowledge on method effects in psychological measurement
- Outlines pitfalls in experimental methodology and provides approaches to enhance validity in experiments- Includes example data, equations, and figures for a comprehensive understanding of psychological measurement

More than two dozen experienced researchers in psychological measurement present their knowledge about method effects in psychological measurement and describe how these method effects can influence results obtained with psychological tests and questionnaires. The book provides guidance on improving test and questionnaire development by preventing or controlling for data distortions and representing collected data appropriately by the consideration of method effects. Many chapters offer examples on how to examine method effects in sample data using packages in RStudio. Equipped with such thorough methodological knowledge, practitioners can also utilize these extensive chapters to select the most appropriate test for their patients and enhance the caliber of qualitative treatment. The endeavors to control for method effects provided in this book are a promising avenue for refining and improving skills in psychological measurement.

Stefan Troche, PhD, University of Bern, Institute for Psychology, Bern, Switzerland.

Samuel Greiff, PhD, Technical University Munich, Germany.

Karl Schweizer, PhD, Goethe University Frankfurt, Germany.