Treffer: Intra-rater and Interrater Reliability of the Violence Assessment Tool©.
Original Publication: [Billerica, Mass., Contemporary Publishing Associates]
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Objective: The purpose of this study was to determine interrater and intra-rater reliability of the Violence Assessment Tool© (VAT©) for identifying patients at risk for aggressive/violent behavior in 4 patient care settings: acute care, emergency department, ambulatory care, and home care.
Background: There is a lack of evidence evaluating the psychometric properties of violence risk assessment tools used outside of the behavioral health setting.
Methods: This psychometric study, using standardized patient vignettes to assess the interrater and intra-rater reliability of the VAT©, was conducted at a large healthcare system in the Midwest and its affiliated simulation center.
Results: Intraclass correlations indicated good interrater reliability (0.75 or higher) for the overall VAT© score in each of the study settings and good intra-rater reliability looking at the VAT© score-based risk category.
Conclusions: Based on this study, the VAT© is a reliable instrument for assessing the risk for violent behavior of patients outside the behavioral health setting.
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