L
L. Maaike Helmus
Researcher at Simon Fraser University
Publications - 18
Citations - 399
L. Maaike Helmus is an academic researcher from Simon Fraser University. The author has contributed to research in topics: Recidivism & Risk assessment. The author has an hindex of 7, co-authored 18 publications receiving 266 citations. Previous affiliations of L. Maaike Helmus include Victoria University of Wellington.
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Primer on Risk Assessment and the Statistics Used to Evaluate Its Accuracy
TL;DR: The pervasiveness of risk assessment in correctional decision-making necessitates a better understanding of the nature of risk scales and the methods used to assess their accuracy as mentioned in this paper, and risk is a contin...
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Reductions in risk based on time offense-free in the community: Once a sexual offender, not always a sexual offender.
TL;DR: In this article, the authors examined the testable assumption that individuals with a history of sexual crime present an enduring risk for sexual recidivism and found that the likelihood of new sexual offenses declined the longer individuals with an episodic sexual offending remain sexual offender-free in the community.
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Communicating the results of criterion referenced prediction measures: Risk categories for the Static-99R and Static-2002R sexual offender risk assessment tools
TL;DR: It is found that the new, common STATIC risk categories not only increase concordance of risk classification (from 51% to 72%)—they also allow evaluators to make the same inferences for offenders in the same category regardless of which instrument was used to assign category membership.
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A validation study of the Child Pornography Offender Risk Tool (CPORT)
TL;DR: The Child Pornography Offender Risk Tool (CPORT) is a seven-item structured tool to assess the likelihood of future sexual offending over a 5-year fixed follow-up and was significantly predictive of these outcomes for the child pornography offenders with no known contact offenses.
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Field validity of Static-99/R scores in a statewide sample of 34,687 convicted sexual offenders.
TL;DR: A new and greatly expanded field study of the predictive validity of the Static-99 as applied system-wide in Texas and the potential benefits of using statewide data to develop local norms are presented.