Diabetes Mellitus Family Assessment Instruments: A Systematic Review of Measurement Properties.

Although 31 instruments were included, none of their psychometric properties were scored as "very good". From the instruments scored as adequate on development and content validity, five stood out for their quality appraisal.. The development of new instruments is not recommended. More studies should be conducted on the existing instruments to assess the less commonly evaluated psychometric properties. Using valid instruments to develop and evaluate interventions is essential to promote health literacy and the effectiveness of diabetes management.