Psychometric Properties of the Indonesian Version of the Medical Outcome Study Social Support Survey (MOS_SSS)

Background: Patients with diabetes need to consider social support as an essential aspect that affects their function and well-being. A standardized instrument to assess social support is necessary, as this support plays a crucial role in blood sugar control. One such measurement tool is the Medical Outcome Study Social Support (MOS SSS). At the same time, it does not yet exist in Indonesia, especially in diabetic patients. Objectives: This study aimed to conduct cross-cultural adaptation and psychometric testing of the MOS SSS into Indonesian. Methods: The researcher employed a cross-sectional design, incorporating a cultural adaptation approach, forward-backward translation, and psychometric testing. The total sample consists of 277 participants, divided into three groups: expert adjustment with seven experts, 36 respondents in pretesting, and 234 respondents in psychometric tests. Results: The Indonesian MOS SSS has an I_CVI of 0.97, an S_CVI/UA of 0.81, an S_CVI/AVE of 0.97, and a Cronbach's alpha of 0.895–0.954. The researcher employed Exploratory Factor Analysis (EFA) to identify the factors created, and three factors were found: information and emotion, positive social interaction, and tangible support. The loading factor is 0.506–0.741 with 19 items. Conclusion: The MOS SSS Indonesian version is a valid and reliable instrument. The healthcare workers, especially nurses, could utilize it to assess social support for individuals with type 2 diabetes mellitus.