The Effects of Cognitive-Behavioral Therapy as an Anti-Depressive Treatment is Falling: A Meta-analysis

Looking at 70 studies conducted between 1977 and 2014 on the effectiveness of CBT on depression, this meta-analysis shows a dramatically waning impact. The authors suggest that this may be due to the diminishment of a placebo effect of CBT, an effect that was stronger when, almost 40 years ago, the treatment was relatively new.

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