PowerUp! — Software tools, available free of charge, to enable researchers to determine the optimal sample size when designing a randomized controlled trial or other type of impact evaluation.
RCT-YES™ — A software tool, available free of charge, to enable researchers and public officials to analyze and report results from a randomized controlled trial or other type of impact evaluation.
“What works” sites that focus on well-conducted randomized controlled trials in social policy:
The Best Evidence Encyclopedia, established by the Center for Data-Driven Reform in Education at Johns Hopkins University, presents reliable, unbiased information on high-quality evaluations of educational programs.
Blueprints for Healthy Youth Development at the University of Colorado at Boulder is a national violence prevention initiative to identify programs that are effective in reducing adolescent violent crime, aggression, delinquency, and substance abuse.
The International Campbell Collaboration offers a registry of systematic reviews of evidence on the effects of interventions in the social, behavioral, and educational arenas.
The What Works Clearinghouse established by the U.S. Department of Education’s Institute of Education Sciences to provide educators, policymakers, and the public with a central, independent, and trusted source of scientific evidence of what works in education.