How relevant for you is to be a moral person? Polish validation of the Self-Importance of Moral Identity Scale

Resumen

Objective The Self-Importance of Moral Identity Scale (SMIS) was developed by Aquino and Reeds with the purpose of measuring how people evaluate their private (Internalization subscale) and public (Symbolization subscale) moral identity. SMIS has become commonly and broadly used in moral studies. The aim of this paper is to validate the Polish version of SMIS by analyzing its structure and relation to similar measures (such as The Moral Self-Concept Scale developed by Stake and The Moral Self-Image Scale created by Jordan, Leliveld and Tenbrunsel), declared past prosocial behaviors and readiness to donate money. Methods The translation-back-translation procedure was used to maintain semantic, idiomatic, and conceptual equivalence of the original scale. Throughout four separate studies the psychometric properties of the Polish version of the scale were assessed: Study 1 (N = 529) was carried out to derive the factor structure using the exploratory factor analysis (EFA); Study 2 (N = 602) and Study 3 (N = 899) were performed to cross-validate and replicate the structure with the confirmatory factor analysis (CFA); Study 4 (N = 862) was conducted to assess measurement invariance due to gender with multigroup CFA. In each study, the validity of the scale was assessed. Results A stable two-factor structure using 10 items was replicated in four different samples. The results showed that reliability (α) was between 0.71 and 0.81 for Internalization, and 0.76 and 0.81 for Symbolization. Validity was confirmed in terms of the expected pattern of correlations with morality measures. Metric invariance was confirmed across gender except for factor loadings on two items regarding the external manifestation of values. Polish normalization for men and women was constructed. Conclusions Polish validation of SMIS proved to be a structurally consistent and valid measure.

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Cómo citar (APA 7)

Paruzel-Czachura, M., & Blukacz, M. (2020). How relevant for you is to be a moral person? Polish validation of the Self-Importance of Moral Identity Scale. https://doi.org/10.31234/osf.io/c2jsy