From: Effects of group metacognitive training (MCT) on mental capacity and functioning in patients with psychosis in a secure forensic psychiatric hospital: a prospective-cohort waiting list controlled study
MCT n = 11
Waiting list comparison group n = 8
ANOVA f/p df = 1
T1: Baseline GAF
50.6 (9.5)
54.6 (8.8)
0.9/>0.3
T2: Post-MCT or waiting list GAF
57.2 (9.8)
48.0 (6.9)
5.1/0.035