Major mental illness 5. Supply and Services Canada: The HCR has a base of predictive validity studies, with a link to recidivism and good interrater reliability indexes; the SVR, given its newness, does not yet have such studies. Sex offender risk assessment and the law. Escalation in frequency or severity of sex offenses Should one give the historical items more weight? Those items associated with changes in recidivism were then subjected to a stepwise multiple regression to eliminate item redundancy Epperson, et al.
Past non-sexual violent offenses Mental disorder and violent behavior. Of course, if a plethysmograph were essential to assessing sex offender risk, if its elimination from an assessment battery led to poor predictions, and if there were no alternative methods of obtaining information about deviant sexual interest, then the time and money to include it in a standard battery might be defensible. What underlying factors describe the HCR’s structure, and how many items assess each factor? Additional studies are needed to address these questions. All scales start with some rational process of criterion selection based upon a review of the empirical literature.
The manual also provides studies of the HCR up toa relatively scant literature consisting of reliability and validity studies in correctional, forensic psychiatric, and civil psychiatric settings. Appraising and managing risk.
The PCL-R measures two factors: The Assessment of Dangerousness and Risk.
Both instruments will allow the practitioner to organize and communicate his or her thoughts clearly, perhaps the HCR given its conceptually clearer divisions more so than the SVR The SVR psychosocial adjustment section appears overly dense with general hcrr-20 items, the weaker of the two above factors in predicting sex offenses.
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The manual itself is helpful to read in preparing for cross-examination. Of course, if a plethysmograph were essential to assessing sex offender risk, if its elimination from an assessment battery led to poor predictions, and if there were no alternative methods of obtaining information about deviant sexual interest, then the time and money to include it in a standard battery might be defensible. The literature indicates that two broad factors predict sex offenses: Each instrument is an admirable integration of research and clinical practice.
Remember me on this computer.
Those of us who base our risk assessments on the empirical literature now sleep better. Uses weapons or threats of death in sex offenses Unfortunately, no reliability indexes are available yet for the SVR Mental disorder and violent behavior.
Implications for practice and the education of psychologists and other mental health professionals. Even today, only a few risk assessment instruments are truly actuarial. High density sex offenses Structured risk assessment of sexual violence in forensic clinical practice.
Finally, the scale can be deconstructed into its component items and factors, and each component examined for its ability to predict recidivism.
The Contribution of Age-at-release. However, the validity study for one current actuarial risk assessment scale, the VRAG, found in fact a negative relationship between major mental illness and future violence Quinsey et hcr–20.
By actuarial, here I mean not only that the items, or criteria, were selected based on their empirical support in the literature, but also that the scale itself has predictive validity studies, having been empirically linked to recidivism.
The prediction of criminal and violent recidivism among mentally disordered offenders: Substance use problems 6. Current test construction methods typically include an item analysis to eliminate item redundancy and determine which items are the best measures of the constructs.
A meta-analysis of sexual offender recidivism studies. All scales start with some rational process of criterion selection based upon a review of the empirical literature.
Also, it is unclear what rules one can use to combine the items to arrive at an assessment of risk.
Annotated Bibliography – Dr. Kevin S. Douglas, LL.B., Ph.D.
Those items associated with changes in recidivism were then subjected to a stepwise multiple regression to eliminate item redundancy Epperson, et al. Journal of Consulting and Clinical Psychology We practitioners have reviw in distress as our academic colleagues have said that predicting future violent acts cannot be done at a level better than chance, that in fact we have been over-predicting future violence, as evidenced in Baxtrom Baxtrom v.
Should one give each item bibliograaphy weight? Help Center Find new research papers in: