Two-Tiered Violence Risk Estimates (TTV)

The TTV is a measure designed to assess the likelihood of future violence in offenders. It falls under the integrated-actuarial method of risk assessment, whereby an actuarial estimate is used as an anchor for the risk prediction, and dynamic risk factors are used for risk management purposes. Unlike other measures of an actuarial nature, the TTV was developed by evaluating common risk factors contained in existing risk measures, such as the Statistical Information on Recidivism Scale, as well as risk factors with a strong relation to violence in the literature. The scale was developed using a sample of 247 male offenders. Approximately half of the development sample reoffended in general, while around one third of the sample violently reoffended.

The TTV contains two subscales. The first ...

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