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J Forensic Sci. 2013 Sep;58(5):1353-8. doi: 10.1111/1556-4029.12196. Epub 2013 Jul 18.

Workplace assessment of targeted violence risk: the development and reliability of the WAVR-21.

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1
San Diego Psychoanalytic Institute, Department of Psychiatry, University of California, San Diego, San Diego, CA 92169, USA. reidmeloy@gmail.com

Abstract

This study describes the development of the WAVR-21, a structured professional judgment guide for the assessment of workplace targeted violence, and presents initial interrater reliability results. The 21-item instrument codes both static and dynamic risk factors and change, if any, over time. Five critical items or red flag indicators assess violent motives, ideation, intent, weapons skill, and pre-attack planning. Additional items assess the contribution of mental disorder, negative personality factors, situational factors, and a protective factor. Eleven raters each rated 12 randomly assigned cases from actual files of workplace threat scenarios. Summary interrater reliability correlation coefficients (ICCs) for overall presence of risk factors, risk of violence, and seriousness of the violent act were in the fair to good range, similar to other structured professional judgment instruments. A subgroup of psychologists who were coders produced an ICC of 0.76 for overall presence of risk factors. Some of the individual items had poor reliability for both clinical and statistical reasons. The WAVR-21 appears to improve the structuring and organizing of empirically based risk-relevant data and may enhance communication and decision making.

KEYWORDS:

WAVR-21; forensic science; targeted violence; threat assessment; violence risk assessment; workplace violence; workplace violence prevention

PMID:
23865721
DOI:
10.1111/1556-4029.12196
[Indexed for MEDLINE]
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