Compared with what? An analysis of control-group types in Cochrane and Campbell reviews of psychosocial treatment efficacy with substance use disorders

Ref ID 742
First Author P.Karlsson
Year Of Publishing 2015
Keywords Cochrane
Mental health
External validity
Social care
Problem(s) Ignores setting or context of included studies which limits review applicability
Number of systematic reviews included 8
Summary of Findings From 8 included Cochrane and Campbell reviews of psychosocial treatments for substance use disorders published up to 2013. Reviews covered studies involving widely different control conditions. Overall, little attention was paid to the use of different control groups (e.g. head-to-head comparisons versus untreated controls) and what this implies when interpreting effect sizes. Seven of eight reviews did not provide a rationale for the choice of comparison conditions.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study? No