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Recent controlled studies of cognitive-behavioral treatment (CBT) of bulimina nervosa confirm previous research showing that CBT is broadly effective. Neither the necessary nor sufficient conditions for successful CBT can yet be specified, however. Relapse has been a problem in some studies but not others. Reliable prognostic indicators have yet to be developed. CBT seems to be superior to pharmacotherapy, but not significantly better than alternative psychological methods. The results of treatment outcome bear importantly on our understanding of the nature of bulimia nervosa. Problems with both the anxiety and cognitive models are noted, and a case is made for a broader cognitive-affective view of the disorder.
Wilson et al. (Sun,) studied this question.