Framing Social Comparison Feedback With Financial Incentives for Physical Activity Promotion: A Randomized Trial

Social comparison feedback is often used in physical activity interventions but the optimal design of feedback is unknown.This 4-arm, randomized trial consisted of a 13-week intervention period and 13-week follow-up period. During the intervention, 4-person teams were entered into a weekly lottery valued at about $1.40/day and contingent on the team averaging ≥7000 steps per day. Social comparison feedback on performance was delivered weekly for...