Cross‐Cultural Adaptation and Psychometric Evaluation of the Korean Version of Crisis Self‐Efficacy Index

ABSTRACT Crisis self‐efficacy reflects individuals' beliefs in their ability to manage crises and plays a crucial role in shaping responses during emergency situations. To support crisis preparedness in South Korea, a validated instrument for assessing self‐efficacy in crisis contexts is required. This study aimed to translate, culturally adapt, and evaluate the psychometric properties of the Korean version of the Crisis Self‐Efficacy Index (K‐CSI). The translation and cultural adaptation followed the guidelines proposed by Sousa and Rojjanasrirat. Psychometric analyses were conducted using data from 230 Korean adults aged 18–65 years. Exploratory and confirmatory factor analyses were performed to examine the factor structure, while criterion validity was assessed using the General Self‐Efficacy Scale (GSES) and the Social Desirability Scale‐9 (SDS‐9). Exploratory factor analysis supported an 11‐item, three‐factor structure consisting of Action Efficacy, Preventive Efficacy, and Achievement and Coping Efficacy. The K‐CSI demonstrated acceptable internal consistency (Cronbach's α = 0.95) and showed significant correlations with the GSES (r = 0.64) and the SDS‐9 (r = 0.18). Confirmatory factor analysis indicated mixed but overall acceptable model fit (CFI = 0.95, TLI = 0.94, RMSEA = 0.10 [90% CI: 0.09–0.12], SRMR = 0.03). These findings support the applicability of the K‐CSI as a reliable and valid instrument for assessing crisis self‐efficacy among Korean adults and suggest its potential utility in both research and clinical practice in Korea.