The focus of this study is to test the efficacy of a 12-week, phone-delivered Positive Psychology-Motivational Interviewing (PP-MI) intervention, with additional twice weekly PP and health behavior text messages for a total of 24 weeks (with interactive, algorithm-driven, goal-focused text messages in the final 12 weeks), compared to an attention-matched MI-based educational condition, in a randomized trial (NIH Stage II) of 280 patients with New York Heart Association class I-III Heart Failure (HF).
Adult patients with NYHA class I, II, or III HF.
Suboptimal adherence to health behaviors. This will be defined as a total score of ≤15 on three Medical Outcomes Study Specific Adherence Scale (MOS) items regarding diet/exercise/medications.
Cognitive deficits impeding a participant's ability to provide informed consent or participate, assessed via a 6-item cognitive test.
Medical conditions likely to lead to death within 6 months.
Inability to participate in physical activity due to another medical condition (e.g., arthritis).
Inability to read, write, or speak in English.