NCT Number: NCT02594319
Understanding Mechanisms of Health Behavior
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.
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Notify MeKey information
Age range
18 year and older
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
Who can participate
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- Consume fewer than 5 servings/day of fruits and vegetables
- Daily access to internet for 3 weeks following baseline session
- Have or are willing to create an account on PayPal
Exclusion criteria
-
Treatment and study plan
Self monitoring
BehavioralPrimary outcomes
-
Fruit and Vegetable Consumption, servings per week
Time frame: 3 weeks
-
Perceived Behavioral Control scale score
Time frame: 3 weeks
-
Attitudes scale score
Time frame: 3 weeks
-
Intrinsic Motivation scale score
Time frame: 3 weeks
-
Fruit and vegetable consumption, servings per week
Time frame: 5 weeks
-
Perceived Behavioral Control scale score
Time frame: 5 weeks
-
Attitudes scale score
Time frame: 5 weeks
-
Intrinsic Motivation scale score
Time frame: 5 weeks
Secondary outcomes
-
Perceived Stress Scale score
Time frame: 3 weeks
-
Perceived Stress Scale score
Time frame: 5 weeks
Sponsors and collaborators
Lead sponsor
University of Colorado, Boulder
Other
Registry information
Important dates
- Study start
- 2015
- Primary completion
- 2015
- Study completion
- 2015
- First posted
- Nov 3, 2015
- Registry last updated
- Aug 1, 2023
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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