| Sumario: | Purpose: This study aimed to translate, cross-culturally adapt, and evaluate the psychometric properties of the Korean version of the Undergraduate Nursing Student Academic Satisfaction Scale (K-UNSASS). Methods: The K-UNSASS was developed using Brislin's team-based translation--back-translation approach, with semantic and conceptual equivalence examined. Face validity was assessed, and a pilot test was conducted in November 2022. Content validity was evaluated by an expert panel. Formal data collection was conducted from December 2022 to January 2023. Structural validity was examined using exploratory and confirmatory factor analyses. Reliability was assessed using Cronbach's alpha and McDonald's omega coefficients. Results: A total of 482 full-time nursing students, most of whom were in the fourth year of their nursing program, were included in the psychometric testing. Construct validity supported a four-factor structure accounting for 65.9% of the total variance. After removal of three items with unsatisfactory factor loadings, a 45-item K-UNSASS was established. Confirmatory factor analysis of the 45-item K-UNSASS demonstrated an acceptable model fit, and both Cronbach's alpha and McDonald's omega coefficients were .97. Conclusion: The K-UNSASS demonstrates acceptable reliability and validity for assessing academic satisfaction among Korean nursing students. As a culturally relevant instrument, it supports educational improvement through targeted strategies and program evaluation.
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