ArticlePloS one2026
Validation of the moral foundations questionnaire-2 (MFQ-2) in Germany: Psychometric properties and associations with political ideology, religiosity, and personality.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Cross-cultural moral psychology requires robust, validated measures. The Moral Foundations Questionnaire-2 (MFQ-2) is a recent revision of the original MFQ that offers improved assessment of moral intuitions; however, a validated German version is unavailable, limiting moral psychology research in German-speaking populations. This Stage 1 Registered Report Protocol describes the methodology for developing and psychometrically validating a German version of the MFQ-2, with a target sample size of N ≈ 1,200. Its primary aim is to assess the instrument's factor structure using Exploratory Structural Equation Modeling/Confirmatory Factor Analysis, reliability and measurement invariance. A secondary aim is to provide initial construct validity by examining associations with psycho-social correlates, including political ideology, religiosity, personality, and ethics positions. We will test whether theoretically predicted patterns emerge in the German context. By providing a methodologically validated tool, this research will enable investigation of moral belief structures in German-speaking countries and facilitate cross-cultural comparisons in moral psychological science.
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