NCT03192254

Understanding Mechanisms of Health Behavior Change

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 68 (actual)
• Sponsor: University of Colorado, Boulder · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

This research seeks to examine psychological factors that may impact relationship between incentives and health behavior engagement, specifically fruit and vegetable consumption. Additionally, it will compare the impact of two different incentive schedules on behavior engagement, one providing immediate rewards (i.e. rewards received on a daily basis) and another providing delayed rewards (i.e. rewards received at the end of the study period), with a control condition in which no rewards are offered. Study participants will provide reports of their fruit and vegetable consumption each day for three weeks, and in the two incentive conditions, they will receive small monetary rewards for their fruit and vegetable consumption. Following the three week reporting and reward period, participants will complete two additional assessments, measuring psychological constructs and behavior engagement following the cessation of rewards. The study will also examine how cognitive and anthropomorphic factors may contribute to intervention response and the effects on psychological constructs.

Conditions

• Overweight and Obesity
• Diet Modification
• Incentives

Interventions

Type	Name	Description
BEHAVIORAL	self-monitoring	recording fruit and vegetable consumption
BEHAVIORAL	daily monetary incentives	daily payments for consuming fruits and vegetables
BEHAVIORAL	delayed lump sum monetary incentives	lump sum payments for consuming fruits and vegetables

Timeline

• Start date: 2017-07-13
• Primary completion: 2018-02-21
• Completion: 2018-03-30
• First posted: 2017-06-20
• Last updated: 2023-08-01

Locations

1 site across 1 country: United States