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Violence and Mental Illness: A New Analytic Approach

Violence and Mental Illness: A New Analytic Approach Empirical studies of violence and mental illness have used many different methods. Current state-of-the-art methods gather information from both subject and collateral interviews as well as official records. Typically these sources are treated as additive. Any report of a violent incident from any source is treated as true and all reported incidents are added to generate estimates of frequency. This paper presents a new statistical technique that uses the level of agreement between the sources of data to adjust those estimates. The evidence suggests that, although the additive technique for using multiple sources correctly estimates how many people are involved, it substantially underestimates the number of incidents. The new technique substantially reduces both false negatives and false positives. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Law and Human Behavior American Psychological Association

Violence and Mental Illness: A New Analytic Approach

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References (16)

Publisher
American Psychological Association
Copyright
Copyright © 2007 American Psychological Association
ISSN
0147-7307
eISSN
1573-661X
DOI
10.1007/s10979-006-9015-2
pmid
17203412
Publisher site
See Article on Publisher Site

Abstract

Empirical studies of violence and mental illness have used many different methods. Current state-of-the-art methods gather information from both subject and collateral interviews as well as official records. Typically these sources are treated as additive. Any report of a violent incident from any source is treated as true and all reported incidents are added to generate estimates of frequency. This paper presents a new statistical technique that uses the level of agreement between the sources of data to adjust those estimates. The evidence suggests that, although the additive technique for using multiple sources correctly estimates how many people are involved, it substantially underestimates the number of incidents. The new technique substantially reduces both false negatives and false positives.

Journal

Law and Human BehaviorAmerican Psychological Association

Published: Feb 4, 2007

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