ArticleThe Journal of cardiovascular nursing
Development and Psychometric Testing of the Self-Efficacy for Heart-Healthy Lifestyle Behaviors (SE-HeartLife) Scale in Cardiovascular Disease Prevention.
Article in The Journal of cardiovascular nursing. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundSelf-efficacy is a key determinant of adoption and maintainance of heart-healthy behaviors. Practicing multiple heart-healthy behaviors together significantly reduces cardiovascular disease risk. However, no validated tool currently exists to assess self-efficacy related to the integrated practice of these behaviors for cardiovascular disease prevention.
objectiveThe aim of this study was to develop the Self-Efficacy for Heart-Healthy Lifestyle Behaviors (SE-HeartLife) scale and test its psychometric properties among community-dwelling adults without a history of cardiovascular disease.
methodsA total of 1188 adults in South Korea were recruited. Scale development followed 3 phases: (1) conceptualization and item generation, (2) evaluation of content and face validity, and (3) refinement and psychometric testing. The sample was randomly split into subsample 1 (n = 594) for exploratory factor analysis (EFA) and subsample 2 (n = 594) for confirmatory factor analysis (CFA).
resultsThe SE-HeartLife was conceptualized as an individual's perceived confidence in adopting and maintaining heart-healthy lifestyle behaviors in daily life. Of the initial 60 items derived from a comprehensive literature review, 52 were retained following evaluations of content and face validity. The EFA identified 5 underlying factors: SE-Physical-Activity, SE-Unhealthy-Eating-Control, SE-Healthy-Eating, SE-Substance-Use-Control, and SE-Heart-Health-Management. The CFA supported the 5-factor structure, yielding a final 35-item model with acceptable model fit (CMIN/DF = 2.99, standardized root mean squared residual = 0.05, root mean squared error of approximation = 0.06, comparative fit index = 0.93). The scale showed good concurrent and convergent validity, internal consistency, and test-retest reliability.
conclusionsThe 35-item SE-HeartLife scale is a psychometrically robust instrument for assessing self-efficacy in the integrated practice of multiple heart-healthy behaviors aimed at preventing cardiovascular disease.
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