Psychopathy, intelligence and conviction history.

The current study examined the relationship between psychopathy, intelligence and two variables describing the conviction history (length of conviction and number of prior convictions). It was hypothesized that psychopathy factors (interpersonal and antisocial factors assuming a 2-factor model or interpersonal, affective, lifestyle and antisocial factors assuming a 4-factor model) would be related in different ways to IQ scores, length of conviction and number of prior convictions. Psychopathy and IQ were assessed using the PCL:SV and the CFT 20-R respectively.

Are there age-related effects in antisocial personality disorders and psychopathy?

We investigated possible age differences in the frequency of antisocial personality disorder (ASPD), and of psychopathy according to Hare's criteria and its constituent features: In a cross-sectional study 226 male violent offenders, detained in adult or youth custody, were investigated using the Psychopathy Checklist Screening Version (PCL:SV) and the SCID II Interview. Their ages ranged from 18 to 59 years. Total PCL:SV score was negatively correlated with age.

The relationship between DSM-IV cluster B personality disorders and psychopathy according to Hare's criteria: clarification and resolution of previous contradictions.

This study examines the relationship between DSM-cluster B personality disorders (PDs) and psychopaths according to Hare's criteria as detected by the Psychopathy Checklist (PCL:SV) in 299 violent offenders. To clarify some contradictions among several previous studies on this issue, individual cluster B PDs were looked at alone, excluding any cases of comorbidity with other PDs of this cluster. We found highly significant relationships between antisocial and borderline PD and Factor II of the PCL and a highly significant correlation between narcissistic PD and Factor I of the PCL.

Psychopathy checklist score predicts negative events during the sentences of prisoners with Hare psychopathy: a prospective study at a German prison.

Objective: This study examined the predictive validity of the German translation of the Psychopathy Checklist-Screening Version (PCL-SV) for negative events during the course of the prison sentence of German prisoners.

Method: Using the PCL-SV, we investigated 145 offenders in a German prison at the start of their sentences. We then compared the extreme groups identified by the PCL-SV--the high and low scorers--using a prospective design with respect to negative events and factors during the course of the sentences.

Kiel psychotherapy project for violent offenders Towards empirically based forensic psychotherapy -- disturbance profiles and risk of recidivism among incarcerated offenders in a German prison.

This study reports on a psychotherapy project for violent offenders. The project was established at a German prison by the Psychiatric and Psychotherapeutic Department at the University of Kiel. The overall aim of this project is to develop a scientifically based psychotherapy programme for violent offenders.