Assessing treatment progress of individual patients using expected treatment response models

The dosage model provides a normative estimate of the overall pattern of pa tient improvement in psychotherapy. The phase model further specifies patte rns of change in the domains of subjective well-being, symptom remediation, and functioning. The expected treatment response (ETR) approach uses patie nt characteristics to predict an expected path of progress for each patient . With repeated measures of mental health status, the treatment progress of an individual patient can be assessed against the patient's ETR to support decisions that would enhance the quality of a clinical service while it is being delivered.