Predicting outcome with the Level of Service Inventory-Revised: The importance of implementation integrity

Correctional agencies face increasing pressure to provide more services for increasing caseloads with fewer resources. The Level of Service Inventory-Revised (LSI-R) is a risk/need assessment instrument that was designed to assist correctional agencies in classifying offenders based upon risk of re-offending, thereby allowing agencies to assign appropriate levels of risk/need and develop intervention/case-plans accordingly. Although predictive validity of the LSI-R has been demonstrated, very little attention has been paid to the effect that staff training and agency experience have on the validity of this comprehensive, dynamic risk/need assessment tool. The use of formalized training and agency experience were found to be important factors that may determine the validity of the risk/need scores that are gleaned from the LSI-R assessment process. © 2006 Elsevier Ltd. All rights reserved.