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NCJ Number: 227897 Find in a Library
Title: Accuracy of the Static-99 in Predicting Recidivism in Switzerland
Journal: International Journal of Offender Therapy and Comparative Criminology  Volume:53  Issue:4  Dated:August 2009  Pages:482-490
Author(s): Jerome Endrass; Frank Urbaniok; Leonhard Held; Stefan Vetter; Astrid Rossegger
Date Published: August 2009
Page Count: 9
Type: Measurement/Evaluation Device
Format: Article
Language: English
Country: United States of America
Annotation: This study evaluated the discriminant validity and calibration of the Static-99 (a risk assessment instrument) among sex offenders in Switzerland.
Abstract: Results of the study indicate that the Static-99 risk levels were predictive for recidivism among the examined population. The study yielded a satisfactory AUC (area under the curve) of .758 indicating that the Static-99 was suitable for predicting sexual recidivism among sex offenders. Risk assessment, specifically of the recidivism of offenders is a key aspect of forensic psychiatry. Actuarial instruments for the prognosis of recidivism of sex offenders include the Static-99 developed by Hanson and Thornton in 1999. There is strong empirical evidence for the discriminant validity of the Static-99 in predicting sexual recidivism among sex offenders. This study evaluated the predictive accuracy of the Static-99 among sex offenders in Switzerland. The Static-99 scores of 69 violent/sex offenders in Switzerland were assessed using data from their psychiatric assessments. Table and references
Main Term(s): Dangerousness
Index Term(s): Effectiveness; Instrument validation; Recidivism; Sex offenders; Testing and measurement
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