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Reliability of the Brazilian version of HCR-20 Assessing Risk for Violence.

Lisieux Elaine de Borba Telles¹, Vivian Peres Day, Jorge Oscar Folino

¹Mauricio Cardoso Forensic Psychiatric Institute, Porto Alegre, RS, Brazil. lisieux@telles.med.br

Revista Brasileira De Psiquiatria (Sao Paulo, Brazil : 1999)

|September 30, 2009

Summary

The Brazilian version of the HCR-20 Assessing Risk for Violence scale demonstrates excellent interrater reliability in forensic psychiatric patients. This finding supports its use for objective violence risk assessment in Brazil.

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Area of Science:

Forensic Psychiatry
Clinical Psychology
Risk Assessment

Background:

Violence risk assessment is challenging, often lacking objective measures.
The HCR-20 Assessing Risk for Violence is a tool used internationally to improve assessment accuracy.

Purpose of the Study:

To evaluate the reliability of the HCR-20 Assessing Risk for Violence in a Brazilian forensic psychiatric population.
To provide insights into the instrument's central aspects and its performance in a new cultural context.

Main Methods:

Two independent examiners assessed 30 patients under criminal commitment.
Reliability was measured using Intraclass Correlation Coefficients (ICC) for subscales and individual items.

Main Results:

High ICC values were found for all subscales: Historical (0.97), Clinical (0.94), and Risk Management (0.96).
Individual item ICCs ranged from good to excellent (mean 0.97).

Conclusions:

The Brazilian version of the HCR-20 Assessing Risk for Violence exhibits strong interrater reliability.
These findings are comparable to reliability studies conducted in other countries, supporting its validity for use in Brazil.