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

Delgadillo, Jaime, Kellett, Stephen, Ali, Shehzad, McMillan, Dean, Barkham, Michael, Saxon, David, Donohoe, Gill, Stonebank, Heather, Mullaney, Sarah, Eschoe, Patricid, Thwaites, Richard and Lucock, Mike (2016) A multi-service practice research network study of large group psychoeducational cognitive behavioural therapy. Behaviour Research and Therapy, 87. pp. 155-161. ISSN 0005-7967

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


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. Multilevel modelling was used to examine if variability in clinical outcomes was explained by differences in service, group and patient-level (case-mix) variables.


The pooled GAD-7 (pre-post) effect size for all services was d = 0.70, which was consistent with efficacy benchmarks for guided self-help interventions (d = 0.69). One service had significantly smaller effects (d = 0.48), which was explained by differences in group treatment length and case-mix. Variability between groups (i.e., group effects) explained up to 3.6% of variance in treatment outcomes.


Large group psychoeducational CBT is clinically effective, organisationally efficient and consistent with a stepped care approach to service design. Clinical outcome differences between services were explained by group and patient variables.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
L Education > L Education (General)
Schools: School of Human and Health Sciences
Related URLs:
Depositing User: Sara Taylor
Date Deposited: 13 Oct 2016 15:09
Last Modified: 13 Oct 2016 15:38


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