National Institute of Justice National Institute of Justice. Research. Development. Evaluation. Office of Justice Programs
skip navigationHome  |  Help  |  Contact Us  |  Site Map   |  Glossary
Reliable Research. Real Results. skip navigation
skip navigation Additional Resources:

skip navigation



Information about a question that is generated through systematic data collection, research, or program evaluation using accepted scientific methods that are documented and replicable. Evidence may be classified as either descriptive or causal.