PSYCHOMETRIC PROPERTIES AND FACTOR STRUCTURE OF THE WECHSLER MEMORY SCALE-REVISED IN A SAMPLE OF PERSONS WITH INTRACTABLE EPILEPSY

Authors
Citation
Pm. Moore et Ga. Baker, PSYCHOMETRIC PROPERTIES AND FACTOR STRUCTURE OF THE WECHSLER MEMORY SCALE-REVISED IN A SAMPLE OF PERSONS WITH INTRACTABLE EPILEPSY, Neuropsychology, development, and cognition. Section A, Journal of clinical and experimental neuropsychology, 19(6), 1997, pp. 897-905
Citations number
32
Language
INGLESE
art.tipo
Article
ISSN journal
1380-3395
Volume
19
Issue
6
Year of publication
1997
Pages
897 - 905
Database
ISI
SICI code
1380-3395(1997)19:6<897:PPAFSO>2.0.ZU;2-0
Abstract
The Wechsler Memory Scale-Revised (WMS-R) is used routinely as a presu rgical assessment of memory for clients considering elective resection of the temporal lobe and/or hippocampus for the relief of intractable temporal lobe epilepsy. This research investigated the psychometric p roperties of the WMS-R in a population of people with epilepsy. The sa mple consisted of 181 patients with a diagnosis of epilepsy who underw ent a complete neuropsychological examination as a routine part of the ir investigation. The results confirm that the WMS-R has acceptable le vels of reliability as measured by internal consistency. A factor anal ysis revealed a consistent three-factor structure: Visual Memory, Verb al Memory, and Attention/Concentration factors. Multiple regression an alysis, however, indicated that the Visual Memory index was susceptibl e to a number of influences, throwing into question whether it is a pu re measure of nonverbal memory functioning.