Participants

The sample consisted of 189 adults with overweight/obesity (BMI 27–50 kg/m²;M_BMI=36.93 ±5.83 kg/m²; 82.0% female; 70.9% Caucasian; M_age= 51.81 ±9.76 years; ) participating in a BWL study (see Forman and colleagues (2016)). The intervention included 25 group sessions over 12 months, and included all features of standard BWL (e.g., tracking food consumption, reducing caloric intake). Although the larger treatment study compared the efficacy of standard and an acceptance-based BWL approach, data were collapsed across conditions for the present analyses, as conditions were identical for the first few weeks of treatment. Participants were recruited from the greater Philadelphia metropolitan community through various methods including radio advertisements, flyers, and primary care clinics.