The literature supports the existence of the phenomenon termed cognitive dissonance, and one can distil the principles underlying its production, maintenance and reduction. This body of literature may provide insights into the conduct of therapy generally, as well as into the mechanisms of specific therapies which may guide modifications or development of alternative interventions.

The concept of cognitive dissonance can clearly be seen to be of use in understanding the mechanism of action of MI. It can further be of use in guiding modifications to this existing intervention. This concept, and others available through the experimental psychological literature, can be of use in all branches of clinical psychology.

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