A multi-service practice research network study of large group psychoeducational cognitive behavioural therapy.

Background: This was a multi-service evaluation of the clinical and organisational effectiveness of large group psychoeducational CBT delivered within a stepped care model.

Method: Clinical outcomes for 4451 participants in 163 psychoeducational groups delivered across 5 services were analysed by calculating pre-post treatment anxiety (GAD-7) effect sizes (Cohen's d). Overall and between-service effects were compared to published efficacy benchmarks.

"Stress Control" as a Large Group Psychoeducational Intervention at Step 2 of IAPT Services: Acceptability of the Approach and Moderators of Effectiveness.

Background: "Stress Control" (SC) has been adopted as a core intervention in step 2 of Improving Access to Psychological Therapies (IAPT) services, but contemporary evidence of effectiveness has lagged behind service uptake.

Aims: To investigate the acceptability and effectiveness of SC and to explore moderators of outcome.

Method: Analysis of acceptability (via attendance rates) and effectiveness (via IAPT minimum dataset).