Abstract
A systematic review is a literature review following a scientific protocol beginning with the identification of a research question, literature search, screening and coding of literature and statistical analysis, and ending with structured reporting. In medicine, the Cochrane Collaboration, an international network of individuals, which aims to produce, disseminate and update systematic reviews of evidence, has evolved. Leaning from its success, the Campbell Collaboration was established to inform social policy-making. Evidence generated by the Campbell Collaboration will be distributed electronically and utilized by policy makers as well as service providers. The Campbell Collaboration which will provide the best available evidence on “what works” will form a social infrastructure of the experimenting society.