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Ecological validity of the WMS-III Rarely Missed Index in personal injury litigation

Lange, Rael T., Sullivan, Karen A., & Anderson, Deborah S. (2005) Ecological validity of the WMS-III Rarely Missed Index in personal injury litigation. Journal of Clinical and Experimental Neuropsychology, 27(4), pp. 412-424.

Abstract

The purpose of this study was to evaluate the clinical utility of the Rarely Missed Index (RMI) to detect cognitive exaggeration in 78 non-litigant patients (i.e., Mixed Clinical group) and 158 personal injury litigants (i.e., 20 Suspected Exaggerators, 12 Borderline Exaggerators, 126 Genuine Responders). The false positive error rate of the RMI in the Genuine Responder and Mixed Clinical group ranged from 5.4% to 8.6%. Positive RMI scores were found 25% and 41.7% of the Suspected Exaggerator and Borderline Exaggerator groups respectively. The clinical utility of the RMI to identify Suspected Exaggerators versus individuals in the Genuine Responder and Mixed Clinical groups revealed low sensitivity (sensitivity = .25), very high specificity (range = .91 to .95), moderate positive predictive power (range = .50 to .71), and moderate to high negative predictive power (range = .68 to .83). These results do not support the use of the RMI as a reliable predictor of cognitive exaggeration.

Impact and interest:

12 citations in Scopus
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9 citations in Web of Science®

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ID Code: 2252
Item Type: Journal Article
Additional URLs:
Keywords: litigation, psychologists
ISSN: 1744-411X
Subjects: Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > PSYCHOLOGY (170100) > Psychology not elsewhere classified (170199)
Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > PSYCHOLOGY (170100) > Personality Abilities and Assessment (170109)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2005 Taylor & Francis
Copyright Statement: First published in Journal of Clinical and Experimental Neuropsychology 27(4):pp. 412-424.
Deposited On: 05 Jul 2007
Last Modified: 29 Feb 2012 23:12

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