Heart Failure NYHA Class I

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).