The Campbell Collaboration is an international research network that produces and disseminates systematic reviews on the effects of interventions in the social and behavioural sciences. It seeks to improve the quality of public and private services through enhancing the evidence base for social policy and practice. It produces reviews in the areas of Crime and Justice, Education, International Development, and Social Welfare.
Cochrane and Campbell have been closely affiliated since Campbell's establishment in 2000. In 2015 the two collaborations are formalizing plans to work more cooperatively and effectively together in a number of areas of common interest.