The Risk, Need, Responsivity (RNR) Simulation Tool was developed to help jurisdictions apply the RNR framework to practice. This document describes the RNR Simulation Tool and how it was developed. The RNR Simulation Tool is supported by a database of over 20,000 unique offender profiles of various risk, need, and recidivism combinations. The goal of this document is to help users understand the components of the model.
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