Abstract

This study examines the statistical validation of a recently developed, fourth-generation (4G) risk—need assessment system (Correctional Offender Management Profiling for Alternative Sanctions; COMPAS) that incorporates a range of theoretically relevant criminogenic factors and key factors emerging from meta-analytic studies of recidivism. COMPAS's automated scoring provides decision support for correctional agencies for placement decisions, offender management, and treatment planning. The article describes the basic features of COMPAS and then examines the predictive validity of the COMPAS risk scales by fitting Cox proportional hazards models to recidivism outcomes in a sample of presentence investigation and probation intake cases ( N = 2,328). Results indicate that the predictive validities for the COMPAS recidivism risk model, as assessed by the area under the receiver operating characteristic curve (AUC), equal or exceed similar 4G instruments. The AUCs ranged from .66 to .80 for diverse offender subpopulations across three outcome criteria, with a majority of these exceeding .70.

Keywords

RecidivismPredictive validityRisk assessmentReceiver operating characteristicSanctionsPsychologyStatisticsClinical psychologyComputer scienceComputer securityMathematics

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Publication Info

Year
2008
Type
article
Volume
36
Issue
1
Pages
21-40
Citations
325
Access
Closed

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Tim Brennan, William Dieterich, Beate Ehret (2008). Evaluating the Predictive Validity of the Compas Risk and Needs Assessment System. Criminal Justice and Behavior , 36 (1) , 21-40. https://doi.org/10.1177/0093854808326545

Identifiers

DOI
10.1177/0093854808326545