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  • Title: Moderators of the intervention effects for a dissonance-based eating disorder prevention program; results from an amalgam of three randomized trials.
    Author: Müller S, Stice E.
    Journal: Behav Res Ther; 2013 Mar; 51(3):128-33. PubMed ID: 23337181.
    Abstract:
    OBJECTIVE: To investigate factors hypothesized to moderate the effects of a dissonance-based eating disorder prevention program, including initial elevations in thin-ideal internalization, body dissatisfaction, eating disorders symptoms, and older participant age. METHOD: Adolescent female high school and college students with body image concerns (N=977; M age=18.6) were randomized to a dissonance-based thin-ideal internalization reduction program or an assessment-only control condition in three prevention trials. RESULTS: The intervention produced (a) significantly stronger reductions in thin-ideal internalization for participants with initial elevations in thin-ideal internalization and a threshold/subthreshold DSM-5 eating disorder at baseline, (b) significantly greater reductions in eating disorder symptoms for participants with versus without a DSM-5 eating disorder at baseline, and (c) significantly stronger reductions in body dissatisfaction for late adolescence/young adulthood versus mid-adolescent participants. Baseline body dissatisfaction did not moderate the intervention effects. CONCLUSION: Overall, intervention effects tended to be amplified for individuals with initial elevations in risk factors and a DSM-5 eating disorder at baseline. Results suggest that this prevention program is effective for a broad range of individuals, but is somewhat more beneficial for the subgroups identified in the moderation analyses.
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