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Meta-Analysis
. 2009;38(4):196-205.
doi: 10.1080/16506070903318960.

Internet-based and other computerized psychological treatments for adult depression: a meta-analysis

Gerhard Andersson  1 , Pim Cuijpers
Affiliations
Meta-Analysis

Internet-based and other computerized psychological treatments for adult depression: a meta-analysis

Gerhard Andersson et al. Cogn Behav Ther. 2009.

Abstract

Computerized and, more recently, Internet-based treatments for depression have been developed and tested in controlled trials. The aim of this meta-analysis was to summarize the effects of these treatments and investigate characteristics of studies that may be related to the effects. In particular, the authors were interested in the role of personal support when completing a computerized treatment. Following a literature search and coding, the authors included 12 studies, with a total of 2446 participants. Ten of the 12 studies were delivered via the Internet. The mean effect size of the 15 comparisons between Internet-based and other computerized psychological treatments vs. control groups at posttest was d = 0.41 (95% confidence interval [CI]: 0.29-0.54). However, this estimate was moderated by a significant difference between supported (d = 0.61; 95% CI: 0.45-0.77) and unsupported (d = 0.25; 95% CI: 0.14-0.35) treatments. The authors conclude that although more studies are needed, Internet and other computerized treatments hold promise as potentially evidence-based treatments of depression.

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