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Clinical Trials/NCT02594319
NCT02594319
Completed
Not Applicable

Understanding Mechanisms of Health Behavior

University of Colorado, Boulder0 sites61 target enrollmentFebruary 2015

Overview

Phase
Not Applicable
Intervention
Not specified
Conditions
Fruit and Vegetable Consumption
Sponsor
University of Colorado, Boulder
Enrollment
61
Primary Endpoint
Fruit and vegetable consumption, servings per week
Status
Completed
Last Updated
2 years ago

Overview

Brief 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.

Registry
clinicaltrials.gov
Start Date
February 2015
End Date
June 2015
Last Updated
2 years ago
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Responsible Party
Principal Investigator
Principal Investigator

Angela Bryan

PI

University of Colorado, Boulder

Eligibility Criteria

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

  • Not provided

Outcomes

Primary Outcomes

Fruit and vegetable consumption, servings per week

Time Frame: 5 weeks

Fruit and Vegetable Consumption, servings per week

Time Frame: 3 weeks

Attitudes scale score

Time Frame: 5 weeks

Intrinsic Motivation scale score

Time Frame: 5 weeks

Perceived Behavioral Control scale score

Time Frame: 5 weeks

Secondary Outcomes

  • Perceived Stress Scale score(5 weeks)

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