The Journal of Forensic Psychiatry Psychology, Oct 18, 2010
Forensic assessment of personality disorders (PDs) is often hampered by patients&... more Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-reports. A less frequently used alternative in forensic settings is basing PD diagnoses on information provided by knowledgeable informants. Our research examined whether patients and informants in forensic settings differ in how they view PD symptoms, and whether that changes over time. For the purpose of our study,
Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-re... more Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-reports. A less frequently used alternative in forensic settings is basing PD diagnoses on information provided by knowledgeable informants. Our research examined whether patients and informants in forensic settings differ in how they view PD symptoms, and whether that changes over time. For the purpose of our study, we adapted the informant version of the Schedule for Nonadaptive and Adaptive Personality-2nd Edition (SNAP-2) for forensic settings. Twenty-four male forensic inpatients with DSM-IV PDs were assessed with the informant SNAP-FI (completed by three treatment providers per patient) and a self-report version, the SNAP-FP. The SNAP-FI and SNAP-FP scales showed acceptable to excellent reliability. Across all time points, the SNAP-FI revealed more PD pathology than did the SNAP-FP. These initial findings support the value of informant reports in PD assessment in forensic settings.
International Journal of Forensic Mental Health, 2011
The Structured Assessment of PROtective Factors for violence risk (SAPROF) has recently been deve... more The Structured Assessment of PROtective Factors for violence risk (SAPROF) has recently been developed as a strengths-based addition to the assessment of risk for future violent behavior (de Vogel, de Ruiter, Bouman, & de Vries Robbé, 2009). Following the Structured Professional Judgment (SPJ) model, the positive and predominantly dynamic factors in the SAPROF were designed to counterbalance the assessment of risk as measured by risk assessment instruments, such as the HCR-20. The present retrospective study provides a first validation of the SAPROF in a Dutch sample of 126 forensic psychiatric patients. Analyses showed good interrater reliability, good predictive validity for non-recidivism of violence after clinical treatment for both the SAPROF total score and the SAPROF Final Protection Judgment and good predictive validity for violent recidivism for a combined HCR-20 -SAPROF total score. The predictive validity of the combined HCR-20 -SAPROF measure significantly outperformed the predictive validity of the HCR-20 in this study. Repeated assessments of the same patients over time demonstrated a significant improvement of SAPROF scores during treatment. Overall, the results provide evidence for the relationship between the presence of protective factors and non-recidivism of violence and for the additional value of protective factors in the assessment of risk for future violence. Moreover, the sensitivity of SAPROF scores to change provides support for the usefulness of the instrument in planning and evaluating treatment interventions.
In dit artikel worden de stand van zaken en recente ontwikkelingen besproken op het gebied van he... more In dit artikel worden de stand van zaken en recente ontwikkelingen besproken op het gebied van het gestructureerd inschatten van geweldsrisico's in de forensische praktijk. Concrete aanbevelingen worden geboden voor het gebruik van risicotaxatie-instrumenten in de dagelijkse praktijk en voor toekomstig onderzoek. Geconcludeerd wordt dat intensieve samenwerking en goede afstemming tussen onderzoekers, behandelaars, bestuurders en beleidsmakers nodig is om de kwaliteit van risicotaxaties en risicomanagement te blijven verbeteren en daarmee bij te dragen aan een veiliger samenleving.
The Journal of Forensic Psychiatry Psychology, Oct 18, 2010
Forensic assessment of personality disorders (PDs) is often hampered by patients&... more Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-reports. A less frequently used alternative in forensic settings is basing PD diagnoses on information provided by knowledgeable informants. Our research examined whether patients and informants in forensic settings differ in how they view PD symptoms, and whether that changes over time. For the purpose of our study,
Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-re... more Forensic assessment of personality disorders (PDs) is often hampered by patients' invalid self-reports. A less frequently used alternative in forensic settings is basing PD diagnoses on information provided by knowledgeable informants. Our research examined whether patients and informants in forensic settings differ in how they view PD symptoms, and whether that changes over time. For the purpose of our study, we adapted the informant version of the Schedule for Nonadaptive and Adaptive Personality-2nd Edition (SNAP-2) for forensic settings. Twenty-four male forensic inpatients with DSM-IV PDs were assessed with the informant SNAP-FI (completed by three treatment providers per patient) and a self-report version, the SNAP-FP. The SNAP-FI and SNAP-FP scales showed acceptable to excellent reliability. Across all time points, the SNAP-FI revealed more PD pathology than did the SNAP-FP. These initial findings support the value of informant reports in PD assessment in forensic settings.
International Journal of Forensic Mental Health, 2011
The Structured Assessment of PROtective Factors for violence risk (SAPROF) has recently been deve... more The Structured Assessment of PROtective Factors for violence risk (SAPROF) has recently been developed as a strengths-based addition to the assessment of risk for future violent behavior (de Vogel, de Ruiter, Bouman, & de Vries Robbé, 2009). Following the Structured Professional Judgment (SPJ) model, the positive and predominantly dynamic factors in the SAPROF were designed to counterbalance the assessment of risk as measured by risk assessment instruments, such as the HCR-20. The present retrospective study provides a first validation of the SAPROF in a Dutch sample of 126 forensic psychiatric patients. Analyses showed good interrater reliability, good predictive validity for non-recidivism of violence after clinical treatment for both the SAPROF total score and the SAPROF Final Protection Judgment and good predictive validity for violent recidivism for a combined HCR-20 -SAPROF total score. The predictive validity of the combined HCR-20 -SAPROF measure significantly outperformed the predictive validity of the HCR-20 in this study. Repeated assessments of the same patients over time demonstrated a significant improvement of SAPROF scores during treatment. Overall, the results provide evidence for the relationship between the presence of protective factors and non-recidivism of violence and for the additional value of protective factors in the assessment of risk for future violence. Moreover, the sensitivity of SAPROF scores to change provides support for the usefulness of the instrument in planning and evaluating treatment interventions.
In dit artikel worden de stand van zaken en recente ontwikkelingen besproken op het gebied van he... more In dit artikel worden de stand van zaken en recente ontwikkelingen besproken op het gebied van het gestructureerd inschatten van geweldsrisico's in de forensische praktijk. Concrete aanbevelingen worden geboden voor het gebruik van risicotaxatie-instrumenten in de dagelijkse praktijk en voor toekomstig onderzoek. Geconcludeerd wordt dat intensieve samenwerking en goede afstemming tussen onderzoekers, behandelaars, bestuurders en beleidsmakers nodig is om de kwaliteit van risicotaxaties en risicomanagement te blijven verbeteren en daarmee bij te dragen aan een veiliger samenleving.
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