Meeting the challenges of evidence-based policy: The Campbell Collaboration

Evidence-based policy has much to recommend it, but it also faces significant challenges. These challenges reside not only in the dilemmas faced by policy makers but also in the quality of the evaluation evidence. Some of these problems are most effectively addressed by rigorous syntheses of the literature known as systematic reviews. Other problems remain, including the range of quality in systematic reviews and their general failure to be updated in light of new evidence or disseminated beyond the research community. Based on the precedent established in health care by the international Cochrane Collaboration, the newly formed Campbell Collaboration will prepare, maintain, and make accessible systematic reviews of research on the effects of social and educational interventions. Through mechanisms such as rigorous quality control, electronic publication, and worldwide coverage of the literature, the Campbell Collaboration seeks to meet challenges posed by evidence-based policy.