Dissemination and Implementation of the Bright Bodies Intervention for Childhood Obesity

Inclusion Criteria: * Children ages 7-13 years with BMI ≥85th percentile and their parents; * Child-parent dyads enrolled in the Bright Bodies intervention at each site will be eligible for inclusion in the evaluation study. Exclusion Criteria: * Children and/or parents who do not speak the language in which the program will be delivered at each site; * Children and/or parents who plan to move away from the area within the next 15 months; * Children with a history of purging and/or dramatic weight loss prior to the trial; * Children who are currently participating in another high-intensity lifestyle intervention or other similar research study, or are planning to have bariatric surgery within the next six months * Children whose EHR data cannot be accessed by the study teams; * Children with chronic medical conditions limiting their ability to take food by mouth (e.g., g-tube fed, total parenteral nutrition), participate in physical activity (e.g., wheelchair bound), or meaningfully participate in group sessions (e.g., cognitive impairment); * Children with a sibling enrolled in the trial * Children who join the Bright Bodies program after the 4th week of a session (not including orientation)