Validity and Reliability of the Korean Version of the Revised Self-Care of Heart Failure Index v7.2
JinShil Kim, Kye Hun Kim, Young‐Hyo Lim, Seongkum Heo, Keumyi Moon, Mi Sook Oh, Minjeong An
Abstract
The psychometric properties of the Korean version of the revised Self-Care of Heart Failure Index (SCHFI) remain undetermined; therefore, we aimed to evaluate the construct and convergent validity and reliability of the Korean version of the SCHFI in Korean patients with heart failure (HF). Using a cross-sectional design, 207 patients with HF provided data on self-care and self-efficacy in self-care for this psychometric testing. The confirmatory factor analysis supported the construct validity of the Korean version with a three-factor structure: Self-Care Maintenance, Symptom Perception, and Self-Care Management. Convergent validity was supported by the significant relationships between self-efficacy and each scale of the Korean version of the SCHFI ( r = .425–.549, p < .001). The reliability estimates were marginally adequate, with a Cronbach’s alpha of .655 to .776, McDonald’s omega of .710 to .836, and composite reliability coefficients of .704 to .834. The SCHFI was supported as a valid and reliable measure of self-care for Koreans with HF. However, the marginal levels of the Cronbach’s alpha coefficients still require validation in a larger sample.