Effect of length of treatment on weight loss.

  title={Effect of length of treatment on weight loss.},
  author={Michael G Perri and Arthur M Nezu and E T Patti and Kerry McCann},
  journal={Journal of consulting and clinical psychology},
  volume={57 3},
In this study we tested whether the efficacy of behavior therapy for obesity might be improved by lengthening the duration of treatment. Forty-eight obese clients were randomly assigned to either a standard treatment of 20 weekly sessions or to an extended treatment of 40 weekly sessions. The content of each program was identical, but the treatment procedures were introduced in a more gradual manner in the extended condition. At Week 20, the conditions showed equivalent weight losses. At 40… CONTINUE READING

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