Measuring outcome is an important part of any treatment. Multiple studies demonstrate that patients do better when their therapists track their symptoms with validated measures, not just their judgment. Although I use a variety of questionnaires to assess different problems, most of my patients regularly complete the Depression Anxiety Stress Scale. Below is a summary of that data collected from patients who finished treatment over the past 2 years. The average number of sessions was 20, ranging from 6 to 53.
Clinical cutoffs are scores considered low enough to not warrant treatment. Typically they are in the range that people without diagnoses obtain. The clinical cutoffs for the scales of this measure are
Depression: 9, Anxiety: 7; Stress: 14.