Prediction of WAIS-R indices based on performance on the Luria Nebraska Neuropsychological Battery-III.
The purpose of this research was to examine the clinical utility of the Luria-Nebraska Neuropsychological Battery-Third Edition (LNNB-III) in estimating intellectual functioning as measured by the WAIS-R. Ninety-one subjects were administered the WAIS-R and the LNNB-III. Multiple regression were calculated to examine the ability of the LNNB-III clinical scales to predict FSIQ, VIQ, and PIQ indices. The LNNB-III General Intelligence Scale (GI) predicted FSIQ within 10 points 79% of the time, and within 15 points 97% of the time. Similarly, GI predicted VIQ and PIQ indices with 67% accuracy within 10 points and with 91% and 87% accuracy, respectively, within 15 points. A combination of LNNB clinical scales fared no better than GI alone when predicting the FSIQ index. However, a combination of LNNB-III scales predicted VIQ with 80% accuracy within 10 points and with 94% accuracy within 15 points. In contrast, a combination of LNNB-III clinical scales predicted the PIQ index 76% of the time within 10 points and 90% of the time within 15 points. GI appears to be a good alternative when an estimate of intellectual functioning is desired given its less than 10 minute administration time. When greater specificity regarding VIQ and PIQ estimates are desired, a combination of specific LNNB-III scales appear preferable.
Crum
T A
TA
Nova Southeastern University Center for Psychological Studies.
Teichner
G
G
Bradley
J D
JD
Golden
C J
CJ
D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008182:Luria-Nebraska Neuropsychological Battery; D008297:Male; D011237:Predictive Value of Tests; D014888:Wechsler Scales