Classification accuracy of the Portland Digit Recognition Test in Traumatic Brain Injury

Kevin J. Bianchini; Charles W. Mathias; Kevin W. Greve; Rebecca J. Houston; John A. Crouch

doi:10.1076/clin.15.4.461.1890

Classification accuracy of the Portland Digit Recognition Test in Traumatic Brain Injury

Kevin J. Bianchini, Charles W. Mathias, Kevin W. Greve, Rebecca J. Houston, John A. Crouch

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

This study examined the classification accuracy of the Portland Digit Recognition Test (PDRT) in traumatic brain injury (TBI). It differs from past studies in assigning patients to malingering and control groups on the basis of compensation-seeking status and the presence of external markers for malingering. Sensitivity and Specificity were .77 and 1.00, respectively. Past research comparing compensation-seekers to noncompensation-seekers reported Sensitivities of .33 or lower (Specificity is always high). This study demonstrates that past research has seriously underestimated the Sensitivity of the PDRT and raises questions about the true Sensitivity of other malingering techniques as well.

Original language	English (US)
Pages (from-to)	461-470
Number of pages	10
Journal	Clinical Neuropsychologist
Volume	15
Issue number	4
DOIs	https://doi.org/10.1076/clin.15.4.461.1890
State	Published - Dec 1 2001
Externally published	Yes

ASJC Scopus subject areas

Neuropsychology and Physiological Psychology
Developmental and Educational Psychology
Clinical Psychology
Arts and Humanities (miscellaneous)
Psychiatry and Mental health

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