Self-Guided Psychological Treatment for Depressive Symptoms: A Meta-Analysis

Pim Cuijpers, Tara Donker, Robert Johansson, David C Mohr, Annemieke van Straten and Gerhard Andersson

PLOS ONE, 2011, vol. 6, issue 6, 1-7

Abstract: Background: A number of trials have examined the effects of self-guided psychological intervention, without any contact between the participants and a therapist or coach. The results and sizes of these trials have been mixed. This is the first quantitative meta-analysis, aimed at organizing and evaluating the literature, and estimating effect size. Method: We conducted systematic literature searches in PubMed, PsycINFO and Embase up to January 2010, and identified additional studies through earlier meta-analyses, and the references of included studies. We identified seven randomized controlled trials that met our inclusion criteria, with a total of 1,362 respondents. The overall quality of the studies was high. A post-hoc power calculation showed that the studies had sufficient statistical power to detect an effect size of d = 0.19. Results: The overall mean effect size indicating the difference between self-guided psychological treatment and control groups at post-test was d = 0.28 (p

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0021274

DOI: 10.1371/journal.pone.0021274

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