C. Kraiuhin et al., SENSITIVITY OF THE WAIS-R VERBAL-PERFORMANCE IQ DIFFERENCE AND INTERSUBTEST SCATTER TO TRAUMATIC BRAIN INJURY, Brain injury, 10(9), 1996, pp. 677-685
The Wechsler Adult Intelligence Scale-Revised (WAIS-R) Verbal IQ-Perfo
rmance IQ (VIQ-PIQ) discrepancy and a number oi indices of intersubtes
t scatter were examined in 25 subjects with a history of traumatic bra
in injury (TBI) and magnetic resonance imagining (MRI) evidence of str
uctural brain abnormality. Abnormal VIQ-PIQ differences and scatter in
dex values were identified by referring to published normal base rates
. Only 16% of the subjects were identified as abnormal on any one of t
hese WAIS-R measures, which suggests these measures are largely insens
itive to the presence of structural brain abnormality in TBI.