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Personality Characteristics of Patients Showing Suboptimal Cognitive Effort |
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| Authors: | Richard O. Temple Angela M. McBride Michael David Horner Robin M. Taylor |
| Affiliation: | 1. Department of Neurology , State University of New York (SUNY) at Buffalo , Buffalo , NY , USA;2. Jacobs Neurological Institute , Buffalo , NY , USA;3. National Pediatric MS Center , Stony Brook University Medical Center at Stony Brook , Stony Brook , NY , USA |
| Abstract: | This study examined the relationship between performance on the Portland Digit Recognition Test (PDRT) and the MMPI-2 in a group of veterans who were suspected of having motivation to exaggerate cognitive and/or psychiatric symptoms. Number correct on “easy” trials on the PDRT correlated inversely with MMPI-2 measures of psychopathology, whereas number correct on “hard” trials positively correlated with the same scales. Some individuals performed poorly across both types of PDRT trials and had significant MMPI-2 elevations, whereas others performed poorly only on “hard” PDRT trials and had less extreme MMPI-2 elevations. This study reinforces the need to assess the validity of both cognitive and psychiatric symptom complaints. |
| Keywords: | Brief Visuospatial Memory Test – Revised BVMTR Symbol Digit Modalities Test SDMT Multiple sclerosis Psychometrics Multiple regression Normative data |