This study will implement a 4-month Internet-based behavioral weight loss intervention in order to collect ecological momentary assessment (EMA) data that will shed light on real-time barriers to weight management. The intervention is evidence-based and adapted with respect to content and delivery mode in order to meet the needs of emerging adult women. Consenting and eligible participants will receive 1 virtual group session led by a trained interventionist followed by weekly emails directing them to an intervention website housing video and .pdf content, weekly text messages, emailed tailored feedback regarding their weight loss behaviors and progress, and a closed Facebook group to facilitate social support. All participants will be followed for 4 months with hybrid in-person/virtual assessments at 0 and 4 months; in addition, all participants will be asked to respond to EMA prompts throughout the 4-month intervention period (Week 2, Week 4, Week 7, and Week 13).
