A comparison of nine WAIS-R short forms in individuals with mild to severe traumatic brain injury.
Scores from nine WAIS-R short forms were calculated for a sample of 75 adults with mild to severe traumatic brain injury (TBI). Although all nine of the short forms were significantly correlated with the WAIS-R Full Scale IQ, three of the short forms (Vocabulary-Block Design; Vocabulary-Block Design-Arithmetic-Similarities; Vocabulary-Arithmetic-Picture Arrangement-Block Design) significantly overestimated the WAIS-R IQ and thus may be inappropriate to use with this population. The remaining six short forms did not differ significantly from the WAIS-R Full Scale IQ. Among these six, Ward s seven-subtest short form appeared to exhibit the least variability in predicting the WAIS-R Full Scale IQ. Information is presented and discussed regarding the absolute difference scores between short form IQ estimates and the WAIS-R as well as the proportion of short forms which significantly under- and overestimate the Full Scale IQ.
Guilmette
T J
TJ
Providence College, Southern New England Rehabilitation Center, Providence, 02918, USA.
Dabrowski
J
J
Kennedy
M L
ML
Gnys
J
J
D000328:Adult; D000647:Amnesia / Q000209:etiology; D000704:Analysis of Variance; D015982:Bias; D001930:Brain Injuries / Q000145:classification / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007807:Language Tests; D008297:Male; D008433:Mathematics; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D013997:Time Factors; D014474:Unconsciousness / Q000209:etiology; D014888:Wechsler Scales / Q000592:standards*