Stice Eric, Marti Nathan, Shaw Heather, O'Neil Kelly
Department of Psychology, University of Texas at Austin, Austin, Texas, USA.
Int J Eat Disord. 2008 Nov;41(7):611-7. doi: 10.1002/eat.20524.
To investigate general and program-specific factors hypothesized to moderate the effects of two eating disorder prevention programs.
High-risk adolescent girls (N = 481; M age = 17) were randomized to a dissonance-based thin-ideal internalization reduction program, a healthy weight management program, an expressive-writing control condition, or an assessment-only control condition. Participants completed diagnostic interviews and surveys at pretest, post-test, 6-month follow-up, and 12-month follow-up.
Dissonance program effects on bulimic symptoms were stronger for participants with initial elevations in body image distress, bulimic symptoms, and thin-ideal internalization. Healthy weight program effects on bulimic symptoms were stronger for adolescents with initial elevations in body image distress, bulimic symptoms, readiness to change, body mass, and emotional eating.
Overall, intervention effects tended to be amplified for high-risk versus low-risk adolescents. However, certain moderator effects appeared to be specific to the two different prevention programs.
研究假定会调节两个饮食失调预防项目效果的一般因素和特定项目因素。
将高危青春期女孩（N = 481；平均年龄 = 17岁）随机分为基于认知失调的瘦理想内化减少项目组、健康体重管理项目组、表达性写作对照组或仅评估对照组。参与者在预测试、后测试、6个月随访和12个月随访时完成诊断访谈和调查。
对于身体意象困扰、暴食症状和瘦理想内化最初较高的参与者，认知失调项目对暴食症状的影响更强。对于身体意象困扰、暴食症状、改变意愿、体重和情绪化进食最初较高的青少年，健康体重项目对暴食症状的影响更强。
总体而言，与低风险青少年相比，高危青少年的干预效果往往会增强。然而，某些调节效应似乎特定于两个不同的预防项目。
