The Campbell Collaboration promotes positive social and economic change through the production and use of systematic reviews and other evidence synthesis for evidence-based policy and practice.

The Campbell Collaboration is an international research network that produces systematic reviews of the effects of social interventions in crime and justice, disability, education, international development and social welfare.

Campbell seek to bring about positive social change and to improve the quality of public and private services around the world.

They believe that a systematic and rigorous approach to research synthesis improves the knowledge base for decisions on policy and practice. Better-informed choices by policymakers and practitioners lead to better outcomes.

Campbell bases its work on ten key principles:

• - Collaboration, by internally and externally fostering good communications, open decision-making and teamwork.
• - Building on the enthusiasm of individuals, by involving and supporting people of different skills and backgrounds.
• - Avoiding duplication, by good management and co-ordination to ensure economy of effort.
• - Minimizing bias, through a variety of approaches such as scientific rigour, ensuring broad participation, and avoiding conflicts of interest.
• - Keeping up to date, by a commitment to ensure that Campbell Reviews are maintained through identification and incorporation of new evidence.
• - Striving for relevance, by promoting the assessment of policies and practices using outcomes that matter to people.
• - Promoting access, by wide dissemination of the outputs of the Collaboration, taking advantage of strategic alliances, and by promoting appropriate prices, content and media to meet the needs of users worldwide.
• - Ensuring quality, by being open and responsive to criticism, applying advances in methodology, and developing systems for quality improvement.
• - Continuity, by ensuring that responsibility for reviews, editorial processes and key functions is maintained and renewed.
• - Enabling wide participation in the work of the Collaboration, by reducing barriers to contributing and by encouraging diversity.