Comparison of seven-subtest and Satz-Mogel short forms of the WAIS-III.
Intellectual functioning remains an important domain of functioning to be measured. To reduce the lengthy administration time, numerous short forms of the WAIS-III have been devised. The present study aimed to compare two methods of applying short forms of the WAIS-III within a clinical population. The results revealed that both item-reduced and selected subtest short forms provide excellent predictions of full administration WAIS-III summary and index scores. The Satz-Mogel short form appeared to provide higher predictive power than the seven-subtest short forms and accounted for a higher number of cases within 6 points of the obtained scores from the full administration. However, the Satz-Mogel short form was inferior to the seven-subtest short forms in terms of the reliability of the index and summary IQ scores. As found in previous research, a trade-off occurs between the predictive power and the reliability of a short form.
Kulas
Joseph F
JF
John D. Dingell Veterans Affairs Medical Center, Detroit, Michigan, USA. kulasj@ccf.org
Axelrod
Bradley N
BN
D003072:Cognition Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D012720:Severity of Illness Index; D014888:Wechsler Scales