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Risk-Appraisal Versus Self-Report in the Prediction of Criminal Justice Outcomes: A Meta-Analysis

NCJ Number
214173
Journal
Criminal Justice and Behavior: An International Journal Volume: 33 Issue: 3 Dated: June 2006 Pages: 279-304
Author(s)
Glenn D. Walters
Date Published
June 2006
Length
26 pages
Annotation
This study offers a meta-analysis of the use of risk-appraisal versus offender self-report in terms of the prediction of criminal justice outcomes.
Abstract
Overall, results indicated that the two methods--risk-appraisal and self-report--produced comparable results for predictions of institutional adjustment but risk-appraisal methods were observed to be modestly superior to self-report in predicting recidivism. However, when analysis of self-reports was restricted to content-relevant self-report predictors, the predictions obtained from both risk-appraisal and self-report measures were again comparable. Moreover, both types of measures revealed comparable incremental validity. The author comments that the moderately favorable findings related to self-report measures should not blind practitioners to the limitations of offender self-report, which include concerns about deception and literacy. Research methods involved the analysis of 27 individual pairs of effect sizes from 22 studies employing 5 risk-appraisal procedures and at least 1 self-report measure. Data were identified via a computerized search of the PsycINFO, National Criminal Justice Reference Service, and Cambridge Scientific Criminal Justice Abstracts databases. Data analysis involved combining the studies, testing homogeneity, and computing a 95 percent confidence interval using statistical procedures. Limitations of the meta-analytic approach are discussed and the author notes that the findings should be considered preliminary. Future research might focus on whether risk-appraisal and self-report measures can effectively supplement one another in specific combinations and sequences. Tables, appendix, notes, references