title: Moderators of the intervention effects for a dissonance-based eating disorder prevention program; results from an amalgam of three randomized trials.
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.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  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.
authors: Oregon Research Institute, 1776 Millrace Drive, Eugene, OR 97403, USA. sina_kristin@yahoo.de
authors: Sina
authors: S
authors: Müller
authors: Eric
authors: E
authors: Stice
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001828:Body Image / Q000523:psychology*; D003073:Cognitive Dissonance; D001068:Feeding and Eating Disorders / Q000517:prevention & control*; D005260:Female; D006801:Humans; D012574:Schools; D012649:Self Concept; D013334:Students / Q000523:psychology; D016896:Treatment Outcome; D055815:Young Adult