1502-P: Content Validity of a Diabetes Self-Management Intervention for Depression in Older Adults

Introduction and Objective: Type 2 diabetes mellitus (T2DM) is a chronic condition frequently associated with depressive symptoms in older adults, negatively affecting self-management and health outcomes. Psychosocial interventions that integrate structured diabetes self-management education and emotional support are needed. A diabetes self-management education intervention targeting depression in older adults with T2DM was developed. This study evaluated its content validity. Methods: A mixed-methods study assessed the content validity of a psychosocial diabetes self-management education intervention for older adults with T2DM. Nine health professionals with expertise in diabetes care, mental health, aging, and health education were selected through purposive sampling and completed one evaluation round. The intervention was evaluated using a structured rubric assessing clarity, relevance, pertinence, and coherence, along with the Program Fit Assessment Tool. Ratings were collected using Likert scales, and qualitative feedback through open-ended questions. Content validity was examined using Lawshe’s Content Validity Index (CVI), with values ≥0.58 considered acceptable. Qualitative data were analyzed thematically. Results: CVI values ranged from 0.75 to 0.95 across components, exceeding the acceptability threshold. Experts identified opportunities to improve pertinence in sessions 1, 2, 3, and 6. Recommendations focused on refining educational content, time allocation, additional materials, and clarity of delivery. Conclusion: The intervention demonstrated adequate content validity. Expert feedback supported refinements to improve pertinence, clarity, and educational coherence, enhancing applicability for older adults with T2DM and supporting diabetes self-management and emotional well-being.