Dissonance-Based Program for Obesity Prevention
(PHPhase2 Trial)

Recruiting in Palo Alto (17 mi)

+1 other location

Overseen byEric Stice, PhD

Age: < 65

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Academic

Waitlist Available

Sponsor: Oregon Research Institute

No Placebo Group

Trial Summary

What is the purpose of this trial?

This 2-site effectiveness trial will test whether a brief dissonance-based obesity prevention program delivered in single sex groups combined with food response and attention training will produce significantly larger weight gain prevention effects than an educational video control condition. An effectiveness trial is important to test whether this program reduces risk for unhealthy weight gain when delivered by real world clinicians under ecologically valid conditions, which is an important step toward broad implementation. A secondary aim focuses on eating disorder symptom prevention effects. A sample of 17-20 year olds with weight concerns (N = 120) will be randomized to single sex Project Health groups with food response and attention training or an educational video control condition. Participants will complete assessments at baseline, posttest, and 6- and 12-month follow ups.

Research Team

Eric Stice, PhD

Principal Investigator

Stanford University

Eligibility Criteria

This trial is for 17-20 year olds who are concerned about their weight, believe they can improve their diet and exercise habits, and have a BMI between 20 to 30. It's not for those with anorexia, bulimia, binge eating disorder or past participants in Project Health studies.

Inclusion Criteria

I believe my diet and exercise habits could be better.

I am between 17 and 20 years old.

You possess at least moderate weight-related concerns (as indicated by a rating of 4 or higher on an 8 point scale ranging from nil to extreme).

See 1 more

Exclusion Criteria

I have been diagnosed with an eating disorder.

Previous participation in a Project Health study

Treatment Details

Interventions

Project Health (Behavioral Intervention)
Response and Attention Training (Behavioral Intervention)

Trial OverviewThe study tests if a dissonance-based obesity prevention program combined with food response training beats an educational video at preventing weight gain. Participants will be randomly placed into groups and followed up over a year.

Participant Groups

3Treatment groups

Experimental Treatment

Active Control

Group I: Male Group, Food Response TrainingExperimental Treatment2 Interventions

Participants in this arm will be assigned to receive Project Health in male-only groups and will complete the food-focused response and attention training intervention.

Group II: Female Group, Food Response TrainingExperimental Treatment2 Interventions

Participants in this arm will be assigned to receive Project Health in female-only groups and will complete the food-focused response and attention training intervention.

Group III: Educational Video controlActive Control1 Intervention

Participants in this arm will be assigned to watch a four-part documentary "The Weight of the Nation" from their home.