Health literacy for chronic illness prevention among adult in Bangkok Metropolitan: development and validation of health literacy scale
Keywords:
health literacy scale, health literacy in adult, chronic illnessAbstract
Health literacy: HL enables the individuals effectively prevent chronic illness. This study aimed to develop and verify validation of a Thai-version of chronic illness prevention health literacy scale among adult persons. The sample of 577 adults living in Bangkok was recruited by cluster sampling method. Content validity, item objective congruence index [IOC], empirical validity, and confirmation factor analysis were employed for a Thai-version of chronic illness prevention health literacy scale’s validation. Cronbach’s alpha coefficients were used to assess the scale reliability. Data were analyzed using computer program, and LISREL software.
Results showed that a Thai -version of chronic illness prevention health literacy scale among adult persons included 17 questionnaire items. The result from the confirmatory factor analysis suggested that all models were empirically fit (c2 = 238.11, df = 105, CFI = 0.99, GFI = 0.95, AGFI = 0.93, TLI = 0.99, RMSEA = 0.047). Convergent validity was satisfied in that all factor loadings and the average variance extracted (AVE) was between 0.474-0.571. R-square and Cronbach’s alpha coefficients was higher than 0.41 and 0.914, indicating the good structural scale.
This study suggests that this Thai-version of chronic illness prevention health literacy scale among adult persons should be used in assessing in adult persons due to a validated and reliable tool. It seems that this questionnaire is an appropriate instrument for measuring HL for chronic illness prevention.
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