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Campbell systematic reviews follow structured guidelines and standards for summarizing the international research evidence on the effects of interventions in crime and justice, education, international development, and social welfare.
"The Resource Center contains a collection of science-based resources and is part of SAMHSA’s new comprehensive approach to identify and disseminate clinically sound and scientifically based policy, practices, and programs." (The National Registry of Evidence-Based Programs and Practices (NREPP) was phased out.)