Goldstein, Stephanie Paige
Drexel University, ProQuest Dissertations Publishing, 2018. 10826383.
Research suggests that even small lapses from a weight control diet could explain suboptimal outcomes in behavioral weight loss programs. Just-in-time adaptive interventions (JITAI) delivered via smartphone apps can allow for the prediction and prevention of lapse behavior through momentary alerts to risk. Our team developed an app (OnTrack) that has been programmed to: (a) record data via ecological momentary assessment (EMA) on dietary lapse behavior and variables known to predict lapses, (b) apply machine learning to determine risk of a dietary lapse, (c) alert individuals when risk is high, and (d) offer a brief text-based micro-intervention (approximately 150-250 words) tailored to momentary risk factors.