Fallah Zahra, Feizi Awat, Sadeghi Masoumeh, Hadavi Mohammad Mahdi, Shahnazi Hossein
Department of Health Education and Promotion School of Health, Isfahan University of Medical Sciences Isfahan Iran.
Department of Biostatistics and Epidemiology School of Health, Isfahan University of Medical Sciences Isfahan Iran.
Health Sci Rep. 2024 Nov 6;7(11):e70188. doi: 10.1002/hsr2.70188. eCollection 2024 Nov.
The present study aimed to develop and psychometrically evaluate the exercise self-efficacy tool within the Health Action Process Approach (HAPA) framework among heart failure patients undergoing cardiac rehabilitation.
This study assessed 205 patients who had suffered heart attacks at the Shahid Chamran Cardiac Rehabilitation Center of Isfahan. Exploratory factor analysis (EFA) was employed to evaluate the construct. Internal reliability was determined using Cronbach's alpha. Additionally, external reliability was measured through a test-retest approach.
EFA identified four factors within the self-efficacy questions (task self-efficacy 1, task self-efficacy 2, coping self-efficacy, and recovery self-efficacy), which accounted for 70.1% of the total variance explained. The Cronbach's alpha coefficients were as follows: 0.836 for the first factor, 0.896 for the second factor, 0.921 for the third factor, 0.914 for the fourth factor, and 0.9 for the overall instrument. The intra-class correlation coefficient was 0.901 for the first factor, 0.887 for the second factor, 0.826 for the third factor, and 0.885 for the fourth factor.
The cardiac rehabilitation self-efficacy questionnaire exhibited high validity, reliability, and desirable item commonalities. Therefore, it can be effectively employed in pertinent HAPA-based studies involving heart failure patients.
本研究旨在开发并从心理测量学角度评估健康行动过程方法（HAPA）框架下针对接受心脏康复治疗的心力衰竭患者的运动自我效能工具。
本研究评估了205名在伊斯法罕的沙希德·查姆兰心脏康复中心心脏病发作的患者。采用探索性因素分析（EFA）来评估该结构。使用克朗巴哈系数确定内部信度。此外，通过重测法测量外部信度。
EFA在自我效能问题中识别出四个因素（任务自我效能1、任务自我效能2、应对自我效能和恢复自我效能），它们解释了总方差的70.1%。克朗巴哈系数如下：第一个因素为0.836，第二个因素为0.896，第三个因素为0.921，第四个因素为0.914，整个工具为0.9。组内相关系数第一个因素为0.901，第二个因素为0.887，第三个因素为0.826，第四个因素为0.885。
心脏康复自我效能量表具有较高的效度、信度和良好的项目共性。因此，它可有效地用于涉及心力衰竭患者的相关基于HAPA的研究中。
