The factor structure of the Wechsler Adult Intelligence Scale vs the Wechsler Adult Intelligence Scale—Revised was examined using two samples of 198 and 276 neuropsychiatric patients. Results of two- and three-factor principal factor solutions with varimax rotations were compared across test forms. Results supported comparable two-factor models for both scales. The third factor, Freedom From Distractibility, accounted for a small percentage of the total variances. Composition of the third factor was inconsistent between samples, calling into question the clinical and theoretical utility of this construct.
Get full access to this article
View all access options for this article.
References
1.
AtkinsonL.CyrJ. J. (1984) Factor analysis of the WAIS—R: Psychiatric and standardization samples. Journal of Consulting and Clinical Psychology, 52, 714–716.
2.
BeckN. C.HorwitzE.SeidenbergM.ParkerJ.FrankR. (1985) WAIS—R factor structure in psychiatric and general medical patients. Journal of Consulting and Clinical Psychology, 53, 402–405.
3.
BlahaJ.WallbrownF. H. (1982) Hietarchical factor structure of the Wechsler Intelligence Scale—Revised. Journal of Consulting and Clinical Psychology, 50, 652–660.
4.
FullerA. (1985) The WAIS—R: Some exploratory studies. Bulletin for Psychologists, No. 37, Australian Council for Educational Research.
5.
LevineM. S. (1977) Canonical analysis and factor comparison. Beverly Hills, CA: Sage.
6.
MatarazzoJ. D. (1972) Wechsler's “Measurement and appraisal of adult intelligence”. (5th ed.) Baltimore, MD: Williams & Wilkins.
7.
NaglieriJ. A.KaufmanA. S. (1983) How many factors underlie the WAIS—R?Journal of Psychoeducational Assessment, 1, 113–119.
8.
O'GradyK. E. (1983) A confirmatory maximum likelihood factor analysis of the WAIS—R. Journal of Consulting and Clinical Psychology, 51, 826–831.
9.
ParkerK. (1983) Factor analysis of the WAIS—R at nine age levels between 16 and 74 years. Journal of Consulting and Clinical Psychology, 51, 302–308.
10.
PlakeB. S.GutkinT. E.KroetenT. (1984) Confirmatory factor analysis of the WAIS—R: Plausibility of models. Journal of Psychoeducational Assessment, 2, 273–277.
11.
RyanJ. J.RosenbergS. J.DeWolfeA. S. (1984) Generalization of the WAIS—R factor structure with a vocational rehabilitation sample. Journal of Consulting and Clinical Psychology, 52. 311–312.
12.
SilversteinA. B. (1982) Factor structure of the Wechsler Adult Intelligence Scale—Revised. Journal of Consulting and Clinical Psychology, 50, 661–664.
13.
TownesB. D.MartinD. C.NelsonD.ProsserR.PeppingM.MaxwellJ.PeelJ.PrestonM. (1985) Neurobehavioral approach to classification of psychiatric patients using a competency model. Journal of Consulting and Clinical Psychology, 53, 33–42.
