Validity and Reliability of the Korean Versions of the Duke University Religion Index (K-DUREL) and the Daily Spiritual Experience Scale (K-DSES)

Purpose: The purpose of this study was to translate Duke University Religion Index (DUREL) and the Daily Spiritual Experience Scale (DSES) into Korean and test the validity and reliability of the instruments. Methods: Korean version of DUREL and DSES were translated and back-translated by 6 bilingual experts and group discussions. Data analyses were performed using SPSS 26.0 and AMOS 22.0. Both exploratory and confirmatory factor analyses were conducted with two data sets of secondary analysis study to examine the factor structure and construct validity. Correlations with other variables were used to test validity and reliability. Results: For K-DUREL, the final evaluation yielded two factors with 5 items: intrinsic religiosity and institutional religious activity. K-DSES had two factors with 16 items: transpersonal spiritual experience, and interpersonal & environmental spiritual experience. Cronbach’s ⍺ of K-DUREL and K-DSES were.67 and.96, respectively. Both instruments showed good reliability and validity for the translated Korean versions. Conclusion: Applying K-DUREL and K-DSES in theory-based research may contribute to knowledge about the religious activity and spiritual experiences in the health and well-being of a Korean. Also, two instruments have the potential to measure changes in religion and spirituality after spiritual or holistic nursing interventions.