TY - JOUR
T1 - Verbal and Visual Memory Index Discrepancies From the Wechsler Memory Scale-Revised
T2 - Cautions in Interpretation
AU - Loring, David W.
AU - Lee, Gregory P.
AU - Martin, Roy C.
AU - Meador, Kimford J.
PY - 1989/9
Y1 - 1989/9
N2 - The present study examined the clinical utility of the Wechsler Memory Scale-Revised (WMS-R) Verbal and Visual Memory Indexes to predict laterality of previous temporal lobectomy (TL) in 13 left (L; 7 men, 5 women) and 20 right (R; 11 men, 9 women) patients. Three verbal-visual index discrepancy criteria were used. Of the 16 patients with difference scores of at least 16 points (least conservative criterion), 9 had index discrepancies that incorrectly identified resection laterality (i.e., Verbal Memory Index decreased relative to Visual Memory Index in RTL patients). Five of 11 patients with index discrepancies of 21 or more points were incorrectly classified. Only 1 of 4 patients was incorrectly classified using a 29-point discrepancy criterion, although 2 RTL patients had discrepancy scores of 28 points in the incorrect direction. Consequently, users of the WMS-R are cautioned against inferring laterality of lesion on the basis of the Verbal and Visual Memory Indexes alone.
AB - The present study examined the clinical utility of the Wechsler Memory Scale-Revised (WMS-R) Verbal and Visual Memory Indexes to predict laterality of previous temporal lobectomy (TL) in 13 left (L; 7 men, 5 women) and 20 right (R; 11 men, 9 women) patients. Three verbal-visual index discrepancy criteria were used. Of the 16 patients with difference scores of at least 16 points (least conservative criterion), 9 had index discrepancies that incorrectly identified resection laterality (i.e., Verbal Memory Index decreased relative to Visual Memory Index in RTL patients). Five of 11 patients with index discrepancies of 21 or more points were incorrectly classified. Only 1 of 4 patients was incorrectly classified using a 29-point discrepancy criterion, although 2 RTL patients had discrepancy scores of 28 points in the incorrect direction. Consequently, users of the WMS-R are cautioned against inferring laterality of lesion on the basis of the Verbal and Visual Memory Indexes alone.
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U2 - 10.1037/1040-3590.1.3.198
DO - 10.1037/1040-3590.1.3.198
M3 - Article
AN - SCOPUS:0001746567
SN - 1040-3590
VL - 1
SP - 198
EP - 202
JO - Psychological Assessment
JF - Psychological Assessment
IS - 3
ER -