Oregon Research Institute, 1715 Franklin Boulevard, Eugene, OR 97403, USA.
J Consult Clin Psychol. 2012 Oct;80(5):907-16. doi: 10.1037/a0028016. Epub 2012 Apr 16.
A group dissonance-based eating disorder prevention program, in which young women critique the thin ideal, reduces eating disorder risk factors and symptoms, but it can be difficult to identify school clinicians with the time and expertise to deliver the intervention. Thus, we developed a prototype Internet version of this program and evaluated it in a preliminary trial.
Female college students with body dissatisfaction (N = 107; M age = 21.6 years, SD = 6.6) were randomized to the Internet intervention, group intervention, educational video condition, or educational brochure condition.
Internet and group participants showed greater pre-post reductions in eating disorder risk factors and symptoms than video controls (M ds = 0.47 and 0.54, respectively) and brochure controls (M ds = 0.75 and 0.72, respectively), with many effects reaching significance. Effects did not differ significantly for Internet versus group participants (M ds = -0.13) or for video versus brochure controls (M d = 0.25). Effect sizes for the Internet intervention were similar to those previously observed for group versions of this intervention.
Results suggest that this prototype Internet intervention is as efficacious as the group intervention, implying that there would be merit in completing this intervention and evaluating it in a fully powered trial.
一项基于群体失调的饮食失调预防计划，让年轻女性批判瘦理想，减少饮食失调的风险因素和症状，但很难找到有时间和专业知识的学校临床医生来提供干预。因此，我们开发了这个计划的一个互联网原型版本，并在初步试验中对其进行了评估。
有身体不满的女大学生（N=107；M 年龄=21.6 岁，SD=6.6）被随机分配到互联网干预组、小组干预组、教育视频组或教育手册组。
与视频对照组（Mds=0.47）和手册对照组（Mds=0.75）相比，互联网组和小组组的饮食失调风险因素和症状都有更大的前后减少（Mds=0.54），许多效果达到了显著性。互联网组与小组组之间（Mds=-0.13）或视频组与手册对照组之间（Mds=0.25）的效果差异不显著。互联网干预的效果与之前对该干预小组版本的观察结果相似。
结果表明，这种原型互联网干预与小组干预一样有效，这意味着完成该干预并在一个完全有权力的试验中对其进行评估是有价值的。
