Allegiance Bias and Therapist Effects: Results of a Randomized Controlled Trial of Binge Eating Disorder

摘要: “Allegiance bias” has been hypothesized to compromise the findings of randomized controlled trials (RCTs). In contrast, our multi-site RCT involving collaboration investigators with different allegiances regarding interpersonal psychotherapy (IPT), guided self-help cognitive behavior therapy (CBTgsh), and behavioral weight loss (BWL) for binge eating disorder showed no evidence any differential site × treatment effects. The indicate that “allegiance does not necessarily occur in well-controlled RCTS appropriate therapist training. We also examined role individual differences have alleged be more important than No effects emerged on measure either IPT or CBTgsh, both which were significantly effective BWL at two-year follow-up.