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Criminal Justice and Behavior
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What's this?

The LSI-R and the Compas

Validation Data on Two Risk-Needs Tools

Tracy L. Fass

Drexel University and Villanova Law School

Kirk Heilbrun

Drexel University, kirk.heilbrun{at}drexel.edu

David DeMatteo

Drexel University

Ralph Fretz

Community Education Centers, Inc.

Over the past two decades, the role of risk-needs assessment in the criminal justice system has increased substantially. This study provides validation data on the Level of Service Inventory—Revised (LSI-R) and the Correctional Offender Management Profiling for Alternative Sanctions (COMPAS) using a large male cohort ( N = 975) with a substantial proportion of ethnic minority offenders. In comparing the predictive validity of these tools, the authors employed a retrospective, archival, known-groups design to study outcomes of offenders released into the community from New Jersey prisons between 1999 and 2002, with a postrelease outcome period of 12 months. The results indicate that both the LSI-R composite score and the COMPAS recidivism score have inconsistent validity when tested on different ethnic/racial populations. Furthermore, the results suggest that different ethnic/racial groups have varying risk and needs factors that predict recidivism.

Key Words: risk • recidivism • risk-needs tools • LSI-R • COMPAS

This version was published on September 1, 2008

Criminal Justice and Behavior, Vol. 35, No. 9, 1095-1108 (2008)
DOI: 10.1177/0093854808320497
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Home page
 Criminal Justice and BehaviorHome page
T. Brennan, W. Dieterich, and B. Ehret
Evaluating the Predictive Validity of the Compas Risk and Needs Assessment System
Criminal Justice and Behavior, January 1, 2009; 36(1): 21 - 40.
[Abstract] [PDF]