Kim JinShil, An Minjeong
College of Nursing, Gachon University, Incheon, South Korea.
College of Nursing, Chonnam National University, Gwangju, South Korea.
Int J Nurs Pract. 2025 Oct;31(5):e70045. doi: 10.1111/ijn.70045.
The psychometric properties of the 10-item Self-Care Self-Efficacy scale have not yet been established in the Korean language. This study aimed to evaluate its validity and reliability among Korean patients with heart failure (HF).
A total of 159 patients with HF participated (mean age: 65.40 ± 9.62 years; 60.1% male). Construct validity was assessed using confirmatory factor analysis. Criterion validity was examined by assessing the correlation of self-efficacy with HF symptom status and physical function and by comparing self-efficacy levels across the New York Heart Association classes. Reliability was evaluated using Cronbach's alpha, McDonald's omega and factor determinacy.
Confirmatory factor analysis fit indices were as follows: comparative fit index = 0.977, Tucker-Lewis index = 0.966, standardised root mean square residual = 0.041 and root mean square error of approximation = 0.065 (90% CI = 0.038-0.090). Criterion validity was supported by significant correlations between self-efficacy and symptom status (r = -0.331, p < 0.001) and physical function (r = 0.299, p < 0.001). Self-efficacy scores were significantly higher in patients with lower New York Heart Association class (I/II) than higher class (III or IV) (F = 4.68, p = 0.011). Reliability estimates were robust: Cronbach's α = 0.913, McDonald's omega = 0.902 and factor determinacy = 0.941.
This study supports the validity and reliability of the Self-Care Self-Efficacy scale in Korean for assessing self-care self-efficacy among patients with HF. Clinicians should consider evaluating and enhancing patients' self-care self-efficacy to effectively manage HF symptoms, especially considering functional severity.
10项自我护理自我效能量表的心理测量特性尚未在韩语中得到确立。本研究旨在评估其在韩国心力衰竭（HF）患者中的有效性和可靠性。
共有159例HF患者参与（平均年龄：65.40±9.62岁；60.1%为男性）。使用验证性因子分析评估结构效度。通过评估自我效能与HF症状状态和身体功能的相关性以及比较纽约心脏协会分级中的自我效能水平来检验效标效度。使用克朗巴赫α系数、麦克唐纳ω系数和因子确定性评估信度。
验证性因子分析拟合指数如下：比较拟合指数=0.977，塔克-刘易斯指数=0.966，标准化根均方残差=0.041，近似误差均方根=0.065（90%CI=0.038-0.090）。自我效能与症状状态（r=-0.331，p<0.001）和身体功能（r=0.299，p<0.001）之间的显著相关性支持了效标效度。纽约心脏协会分级较低（I/II级）的患者自我效能得分显著高于分级较高（III或IV级）的患者（F=4.68，p=0.011）。信度估计值稳健：克朗巴赫α系数=0.913，麦克唐纳ω系数=0.902，因子确定性=0.941。
本研究支持韩语版自我护理自我效能量表在评估HF患者自我护理自我效能方面的有效性和可靠性。临床医生应考虑评估并提高患者的自我护理自我效能，以有效管理HF症状，尤其是考虑到功能严重程度时。
