Predictive validity of the HKT-risk assessment tool: two and 5-year violent recidivism in a nationwide sample of dutch forensic psychiatric patients

Stefan Bogaerts, Marinus Spreen, Paul Ter Horst, Coby Gerlsma

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

This study has examined the predictive validity of the Historical Clinical Future [Historisch Klinisch Toekomst] Revised risk assessment scheme in a cohort of 347 forensic psychiatric patients, which were discharged between 2004 and 2008 from any of 12 highly secure forensic centers in the Netherlands. Predictive validity was measured 2 and 5 years after release. Official reconviction data obtained from the Dutch Ministry of Security and Justice were used as outcome measures. Violent reoffending within 2 and 5 years after discharge was assessed. With regard to violent reoffending, results indicated that the predictive validity of the Historical domain was modest for 2 (area under the curve [AUC] = .75) and 5 (AUC = .74) years. The predictive validity of the Clinical domain was marginal for 2 (admission: AUC = .62; discharge: AUC = .63) and 5 (admission: AUC = .69; discharge: AUC = .62) years after release. The predictive validity of the Future domain was modest (AUC = .71) for 2 years and low for 5 (AUC = .58) years. The total score of the instrument was modest for 2 years (AUC = .78) and marginal for 5 (AUC = .68) years. Finally, the Final Risk Judgment was modest for 2 years (AUC = .78) and marginal for 5 (AUC = .63) years time at risk. It is concluded that this risk assessment instrument appears to be a satisfactory instrument for risk assessment.
Original languageEnglish
Pages (from-to)2259-2270
JournalInternational Journal of Offender Therapy and Comparative Criminology
Volume62
Issue number8
DOIs
Publication statusPublished - 2018

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