Cited by 391Meta-analysis and systematic reviewsPsychotherapy Techniques and ApplicationsMental Health Treatment and Access

Efficacy of cognitive–behavioural therapy and other psychological treatments for adult depression: meta-analytic study of publication bias

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Cuijpers, Pim, Smit, Filip, Bohlmeijer, Ernst, Hollon, Steven D., Andersson, Gerhard·2010·British Journal of Psychiatry

Abstract

Background: It is not clear whether the effects of cognitive–behavioural therapy and other psychotherapies have been overestimated because of publication bias. Aims: To examine indicators of publication bias in randomised controlled trials of psychotherapy for adult depression. Method: We examined effect sizes of 117 trials with 175 comparisons between psychotherapy and control conditions. As indicators of publication bias we examined funnel plots, calculated adjusted effect sizes after publication had been taken into account using Duval & Tweedie's procedure, and tested the symmetry of the funnel plots using the Begg & Mazumdar rank correlation test and Egger's test. Results: The mean effect size was 0.67, which was reduced after adjustment for publication bias to 0.42 (51 imputed studies). Both Begg & Mazumbar's test and Egger's test were highly significant (P<0.001). Conclusions: The effects of psychotherapy for adult depression seem to be overestimated considerably because of publication bias.

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  1. [31]31. Sterne JA, Gavaghan D, Egger M. Publication and related bias in meta- analysis: power of statistical tests and prevalence in the literature. J Clin Epidemiol 2000; 53: 1119-29.

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Authors
Cuijpers, P., Smit, F., Bohlmeijer, E., Hollon, S. D., & Andersson, G.
Affiliations
  • Amsterdam Public Health (NL)
  • Trimbos Institute (NL)
  • Vanderbilt University (US)
  • Linköping University (SE)
Corresponding author
Cuijpers, Pim
Venue
British Journal of Psychiatry
Published
2010-03
Volume
196
Issue
3
Pages
173-178
ISSN
  • 0007-1250 (ISSN-L)
  • 1472-1465
OpenAlex
W2156110385
Cited by
391
References
160
Citations by year
2026: 9 · 2025: 10 · 2024: 16 · 2023: 15 · 2022: 15 · 2021: 19 · 2020: 16 · 2019: 27 · 2018: 30 · 2017: 32 · 2016: 34 · 2015: 33 · 2014: 37 · 2013: 30 · 2012: 22
FWCI
8.66
Type
journal article
Language
en
Open access
Locations
  • The British Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • VU Research Portal (publishedVersion)
  • University of Twente Research Information (publishedVersion)
  • University of Twente Research Information (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Topics
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Social Sciences › Psychology › Clinical Psychology › Psychotherapy Techniques and Applications
  • Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
Keywords
publication bias, cognitive behavioral therapy, psychotherapy, adult depression, effect size overestimation, funnel plot asymmetry
MeSH terms
Adolescent, Adult, Child, Depressive Disorder, Female, Humans, Research, Statistics as Topic, Cognitive Behavioral Therapy, Randomized Controlled Trials as Topic, Publication Bias

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