Clinical significance: a statistical approach to defining meaningful change in psychotherapy research.

@article{Jacobson1991ClinicalSA,
  title={Clinical significance: a statistical approach to defining meaningful change in psychotherapy research.},
  author={N. Jacobson and P. Truax},
  journal={Journal of consulting and clinical psychology},
  year={1991},
  volume={59 1},
  pages={
          12-9
        }
}
In 1984, Jacobson, Follette, and Revenstorf defined clinically significant change as the extent to which therapy moves someone outside the range of the dysfunctional population or within the range of the functional population. In the present article, ways of operationalizing this definition are described, and examples are used to show how clients can be categorized on the basis of this definition. A reliable change index (RC) is also proposed to determine whether the magnitude of change for a… Expand
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