Boosting Emotions & Happiness in Outpatients Living With Diabetes

The investigators developed a novel, telephone-based, 12-week positive psychology intervention and will assess its feasibility and short-term impact in adults with type 2 diabetes (T2D) and suboptimal health behavior adherence. Participants will receive a positive psychology (PP) manual, complete exercises (e.g., writing a gratitude letter, performing acts of kindness), and review these activities by phone with a study trainer over the 12-week study period. Specific Aim #1 (Feasibility and acceptability (immediate impact); primary aim): To assess whether PP exercises administered over the phone are feasible and linked with immediate benefit in patients with T2D, as measured by ratings provided pre- and post- each exercise. Hypothesis: The PP exercises will be feasible (i.e., 4 of the 7 PP exercises will be completed by a majority of participants, and participants will have a mean score of at least 7 out of 10 on ratings of ease of completion for the exercises. The PP exercises will also have adequate immediate impact (i.e., mean ratings of 7/10 of exercise utility post-exercise and ratings of optimism post-exercise that are significantly higher than pre-exercise). Specific Aim #2 (Changes in clinical outcome measures): To determine whether the PP intervention is linked to improvements in psychological well-being, during and after the intervention period (6 \& 12 weeks), via measures of optimism, gratitude, depression, and anxiety. To examine whether the brief PP intervention is associated with improvements in self-reported outcomes related to health (diabetes self-care, diabetes distress, health related quality of life), during and after the intervention. Hypothesis: Participants will have higher mean scores on all psychological outcome measures at 6 and 12 weeks compared to baseline. Participants will also have higher mean scores on all health-related outcome measures at 6 and 12 weeks compared to baseline.