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The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Improving the Predictive Accuracy of Static-99 and Static-2002 With Older Sex Offenders: Revised Age Weights

Helmus, Leslie, Thornton, David, Hanson, R. Karl, Babchishin, Kelly M.·2012·Sexual Abuse

Abstract

Actuarial risk assessment scales and their associated recidivism estimates are generally developed on samples of offenders whose average age is well below 50 years. Criminal behavior of all types declines with age; consequently, actuarial scales tend to overestimate recidivism for older offenders. The current study aimed to develop a revised scoring system for two risk assessment tools (Static-99 and Static-2002) that would more accurately describe older offenders’ risk of recidivism. Using data from 8,390 sex offenders derived from 24 separate samples, age was found to add incremental predictive validity to both Static-99 and Static-2002. After creating new age weights, the resulting instruments (Static-99R and Static-2002R) had only slightly higher relative predictive accuracy. The absolute recidivism estimates, however, provided a substantially better fit for older offenders than the recidivism estimates from the original scales. We encourage evaluators to adopt the revised scales with the new age weights.

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Metadata

Authors
Helmus, L., Thornton, D., Hanson, R. K., & Babchishin, K. M.
Venue
Sexual Abuse
Published
2011-08-15
Volume
24
Issue
1
Pages
64-101
ISSN
  • 1079-0632 (ISSN-L)
  • 1573-286X
OpenAlex
W2115857655
Cited by
396
References
57
FWCI
26.44
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Improving the Predictive Accuracy of Static-99 and Static-2002 With Older Sex Offenders: Revised Age Weights. https://app.cochat.ai/papers/10.1177/1079063211409951
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Helmus, L., Thornton, D., Hanson, R. K., & Babchishin, K. M. (2012). Improving the Predictive Accuracy of Static-99 and Static-2002 With Older Sex Offenders: Revised Age Weights. Sexual Abuse. https://doi.org/10.1177/1079063211409951

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