Abstract
The value of severalbrief psychological treatments has long been shown for anxiety and depressive disorders. Overlap in their various components, however, made it unclear what aspects of the treatments improved patients. For example, cognitive behaviour therapy (CBT) combines both the cognitive and behavioural components. In the last few years, a growing number of randomised controlled trials (RCTs) in Europe and North America have examined behaviour therapy and cognitive therapy on their own; these RCTs found that each therapy on its own was comparably effective for a range of both anxiety and depressive disorders. Other approaches, too, have been helpful.

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