MATERIALS AND METHODS: This study used a mixed methodological approach, which combined an evaluation method and an experimental quantitative design. The content validity of the module used was carried out using professional judgment, involving competent experts in the bahteramas hospital in southeast Sulawesi, Indonesia. The sample population consisted of sixty-five randomly selected respondents, who participated in the validation of the summary of Diabetes Self-Care Activities (SDSCA) questionnaire, which had three phases, namely pre-test, during, fieldwork, and post-test.

RESULTS: The content validity of the module was tested using Aiken's v, and the results ranged from 0.82 to 0.88 for each session, indicating that it was valid. Furthermore, the internal consistency (Cronbach's alpha) obtained in this study was acceptable, with values ranging from 0.60 to 0.92.