Abstract
BackgroundEffective self-care is important in the management of dysmenorrhea. Yet measures of adolescents’ capabilities or self-care agency to exercise self-care to cope with dysmenorrhea are limited in the Chinese population. ObjectivesThe aims of this study were to translate the Exercise of Self-Care Agency Scale (ESCAS) from English into Chinese-Cantonese, and to evaluate its reliability and validity in the Chinese adolescent girls with dysmenorrhea. MethodsThis study consisted of three phases. In phase 1, the ESCAS was translated into Chinese-Cantonese using Brislin's (1986) translation and back-translation method, the semantic equivalence and content validity were assessed. In phase 2, a cross-over design was used to assess the translation adequacy of the Chinese-Cantonese version. In phase 3, the psychometric properties of the Chinese-Cantonese version were tested with a convenience sample of 477 adolescent girls recruited from three secondary schools. The reliability was assessed by internal consistency and test–retest reliability. The construct validity was tested using exploratory factor analysis. ResultsThe semantic equivalence and content validity index of the Chinese-Cantonese version of ESCAS was satisfactory. Results also indicated that the Chinese-Cantonese version had a high level of equivalence with the original English version and demonstrated a high internal consistency and test–retest reliability. Exploratory factor analysis revealed the presence of four factors supporting the conceptual dimension of the original instrument. ConclusionThe current study provides initial psychometric properties of the Chinese-Cantonese version of the ESCAS and supports it as a reliable and valid instrument to measure self-care agency in adolescent girls with dysmenorrhea. It provides health care professionals with a useful tool to assess the extent to which adolescent girls take action towards their problem of dysmenorrhea.
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