32,000
Participants
Start Date
January 31, 2018
Primary Completion Date
February 28, 2019
Study Completion Date
February 28, 2019
Sweet Spot: Flexible high incentive condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
Sweet Spot: Flexible low incentive condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
Sweet Spot: Rigid high incentive condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
Sweet Spot: Rigid low incentive condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
FOTW: High incentive control condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
FOTW: Low incentive control condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
FOTW: High incentive treatment condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
FOTW: Low incentive treatment condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
Think Twice: Control condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
Think Twice: Treatment condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
WDR: Control condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
WDR: Treatment condition
Participants receive text reminders 30 minutes before their workouts and weekly emails reminding them of their schedule.
University of Pennsylvania, Philadelphia
University of Pennsylvania
OTHER