Jacobson’s benchmarks for clinically significant change, based on score distributions Figure C. in clinical and nonclinical reference groups. Simulated distribution of 10,000 people (5000 in each group). Nonclinical scores bounded at zero; clinical average is +2 SD. Area Under Curve would be .96 (Cohen’s = 2.6). Scores of have 97.5% of the clinical group scoring at or d z ≥.65 above (Away), have 97.5% of the nonclinical scoring at or below (Back), and = 1.25 is z z ≤1.40 the threshold for Crossing Closer.
Figure C. Jacobson’s benchmarks for clinically significant change, based on score distributions in clinical and nonclinical reference groups. Simulated distribution of 10,000 people (5000 in each group). Nonclinical scores bounded at zero; clinical average is +2 SD. Area Under Curve would be .96 (Cohen’s d = 2.6). Scores of z ≥.65 have 97.5% of the clinical group scoring at or above (Away), z ≤1.40 have 97.5% of the nonclinical scoring at or below (Back), and z = 1.25 is the threshold for Crossing Closer.
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