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To conduct a pilot effectiveness trial of a brief dissonance-based eating disorder preventative program, the Body Project, when implemented at primary care medical clinics.

Sixty-six female adolescents between the ages of 13 and 17 who reported at least some body image dissatisfaction were recruited at two primary care clinics and randomized to Body Project groups or an educational video control condition; eating disorder risk factors and symptoms were measured at pretest, posttest, and 3-month follow-up.

Body Project versus educational video control participants showed significantly greater reductions in thin-ideal internalization, pressure to be thin, dieting, and eating disorder symptoms at posttest, which were medium to large effect sizes. Body Project participants also showed greater decreases in body dissatisfaction and negative affect at posttest, though these moderate sized effects …