Two meta-analyses by the same group recently show that CBT does not reduce attenuated psychosis symptoms (albeit after a correction) and does not improve social functioning in those at high risk for psychosis at any time points
Interventions and social functioning in youth at risk of psychosis: A systematic review and meta‐analysis CBT did not improve social functioning at 6, 12 or 18 months
CBTp did not significantly improve social functioning at 6 months, 12 months or 18 months in youth at risk of psychosis
"This systematic review and meta‐analysis demonstrated that no treatment significantly improved social functioning in youth at [high risk for psychosis]".
Interventions & social functioning in youth at risk of psychosis: A systematic review and meta‐analysis No treatment significantly improved social functioning in youth at tisk of psychosis