International Journal of Eating Disorders · 2001 · 127 citations · 18 references
MedicineBehavioral SciencesHealth BehaviorBehavioral HealthEating DisordersWomen's HealthAnorexia NervosaBody ImageDisordered EatingEating BehaviorsEating Disorder PreventionEating Disorder TreatmentBody Image DissatisfactionDisordered Eating PreventionEating Disorder CounselingEating Disorder PsychotherapyEating Disorder SymptomatologyGroup InterventionPsychosocial FunctioningTargeted Small-group Intervention
OBJECTIVE: This controlled study evaluated whether an 8-week program offered over the Internet would significantly decrease body image dissatisfaction, disordered eating patterns, and preoccupation with shape/weight among women at high risk for developing an eating disorder. METHOD: Fifty-six college women were recruited on the basis of elevated scores (> or =110) on the Body Shape Questionnaire (BSQ). Psychological functioning, as measured by the Eating Disorder Inventory Drive for Thinness (EDI-DT) subscale, Eating Disorder Examination-Questionnaire (EDE-Q), and the BSQ, was assessed at baseline, posttreatment, and at 10-week follow-up. RESULTS: All participants improved over time on most measures, although effect sizes suggest that the program did impact the intervention group. DISCUSSION: Findings suggest that technological interventions may be helpful for reducing disordered eating patterns and cognitions among high-risk women. Future research is needed to assess whether such programs are effective over time for prevention of and reduction in eating disorder symptomatology.
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Statistical Power Analysis for the Behavioral Sciences
Keith E. Muller, Jacob Cohen · Technometrics · 1989 · 83.9K citations