Dissonance and healthy weight eating disorder prevention programs: a randomized efficacy trial

Area of Science:

• Psychology
• Public Health
• Clinical Psychology

Background:

• Body dissatisfaction is prevalent among adolescent girls.
• Internalization of the thin ideal is a significant risk factor for eating disorders.
• Early intervention is crucial for preventing eating disorder development.

Purpose of the Study:

• To evaluate the efficacy of a dissonance-inducing eating disorder prevention program.
• To compare the dissonance program with a healthy weight management program and control conditions.
• To assess long-term effects on eating disorder risk factors and symptoms.

Main Methods:

• Randomized controlled trial with 481 adolescent girls (mean age 17).
• Four conditions: dissonance-inducing program, healthy weight program, expressive writing control, assessment-only control.
• Pretest, posttest, and 6- and 12-month follow-ups.

Main Results:

• Dissonance program participants showed greater reductions in eating disorder risk factors and bulimic symptoms than all other groups.
• Healthy weight program participants showed greater reductions than control groups.
• Long-term follow-up indicated reduced binge eating and obesity onset for dissonance and healthy weight groups.

Conclusions:

• Dissonance-inducing programs are effective in reducing eating disorder risk factors and symptoms in adolescent girls.
• Both dissonance and healthy weight interventions show promise for public health by preventing long-term issues.
• Intervention effects, while diminishing over time, still demonstrate significant public health potential.