The results from a study of eight risk assessments used for determining which justice-involved youth are low-, moderate-, or high-risk for future delinquency are reviewed. Sections comprising this summary are: introduction; comparison of juvenile justice risk assessment instruments by agency, risk assessment model, and effectiveness; inter-rate reliability testing; validity and equity testing; and implications for practice. Risk assessment should be a simple process that is easily understood and articulated. This study’s findings show that simple, straightforward, actuarial approaches to risk assessment can produce the strongest results (p. 5).