method note
Scale adaptation: translation is not enough
How do you adapt a scale developed in another language?
Adaptation requires at least three stages: linguistic equivalence through forward–back translation and expert review, comprehensibility through piloting, and re-demonstration of construct validity in the new sample. You cannot assume the original factor structure will reappear, and cross-cultural comparison is not permitted until measurement invariance has been tested.
Measurement invariance
Comparing two groups' means assumes the scale measures the same thing in both. That assumption is testable: configural invariance (same structure), metric invariance (same loadings), scalar invariance (same intercepts). Mean comparison requires at least the scalar level, and most cross-cultural studies skip the step.
The common adaptation error
Citing the reliability and validity figures from the scale's original paper does not substitute for adaptation. That evidence has to be reproduced in every new sample.
The work behind this note
- An Investigation of the Characteristics of Learning Organizations in Turkish Companies: Scale Validation2014 · 38 citations
- Factor Analysis and Validity in Social Sciences: Application of Exploratory and Confirmatory Factor Analyses2017 · 2,435 citations
- Fundamental Concepts in Management Research and Answers to Frequently Asked Questions2024 · Book
Other method notes
- Exploratory or confirmatory? Which factor analysis, and whenShould I use exploratory or confirmatory factor analysis?
- Which fit index to report, and whenWhich fit indices should I report in structural equation modelling?
- Validity and reliability: what to report, and howHow are validity and reliability reported, and how do they differ?
Written for researchers and graduate students. Conventions described here are conventions, not rules — check them against your own design before you report.