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The efficacy of cognitive behavior therapies was assessed in a quantitative review. Analysis based on 48 studies indicated that cognitive behavior therapies were superior to no treatment; however, there was no firm evidence that these therapies were superior to other psychotherapies. Our analyses failed to find cognitive behavior therapies emphasizing behavioral techniques to be more effective than primarily cognitive approaches. Also, the efficacy of cognitive behavior therapies appeared relatively uniform across diagnostic categories and equally effective when administered in a group or individual format. Additional evidence would be necessary to justify the contention that cognitive behavior therapies are either better than other psychotherapies or the treatment of choice for particular disorders.
Miller et al. (Sat,) studied this question.