The present investigation examined various objective methods for determining the number of factors that best explain the factorial structure of the WAIS-R. The six methods yielded a wide of range of number of factors and the “correct” answer was determined to be equivocal. In general, the two- and three-factor solutions appeared to be the most viable. Practical implications these data are discussed.
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References
1.
Bergei, L., Bernstein, A., Klein, E., Cohen, J., & Lucas, G.Effects of aging and pathology on the factorial structure of intelligenceJournal of Consulting Psychology, 1964, 28, 199-207.
2.
Cattell, R. B.The scree test for the number of factors. Multivariate Behavioral Research, 1966, 1, 245.
3.
Cohen, J.The factorial structure of the WAIS between early adulthood and old age. Journal of Consulting Psychology. 1957. 21, 283-290.
4.
Dennerll, R. D., Bioedei, J. D., & Sokolov, S.WISC and WAIS factors in children and adults with epilepsy. Journal of Clinical Psychology, 1964, 20. 236-240.
5.
Hollenbeck, G. P.A comparison of analyses using the first and second generation little jiffy's. Educational and Psychological Measurement, 1972, 32, 45-51.
6.
Hollenbeck, G. P., & Kaufman, A. S.Factor analysis of the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). Journal of Clinical Psychology, 1973, 29, 41-45.
7.
Kaufman, A. S. Comparison of tests built fromPiaget's and Gesell's tasks: An analysis of their psychometric properties and psychological meaning. Unpublished doctoral dissertation, Columbia University, 1970.
8.
Kaufman, A. S.Factor analysis of the WISC-R at eleven age levels between 61/2 and 16'/2 years. Journal of Consulting and Clinical Psychology, 1975, 43, 135-147.
9.
Kaufman, A. S.Intelligent testing with the WISC-R. New York: Wiley Interscience, 1979.
10.
Matarazzo, J. D.Wechsler's measurement and appraisal of adult intelligence. Baltimore: Williams & Wilkins, 1972.
11.
Montanelli, R. G., & Humphreys, L. G.Latent roots of random data correlation matrices with squared multiple correlations on the diagonal: A monte carlo study. Psychometrica, 1976, 41, 341-348.
12.
Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., & Bent, D. H.Statistical package for the social sciences, (2nd ed.). New York: McGraw-Hill, 1975.
13.
Rappaport, D., Gill, M. M., & Schafer, R.Diagnostic psychological testing. Chicago: Year Book Publishers, 1945-1946.
14.
Reed, J. J., & Fitzhugh, K. B.Factor analysis of WB-I and WAIS scores of patients with chronic cerebral dysfunction. Perceptual and Motor Skills, 1967, 25, 517-521.
15.
Riegel, R. M., & Riegel, K. E.A comparison and reinterpretation of factor structures of the W-B, the WAIS, and the HAWIE on aged persons. Journal of Consulting Psychology, 1962, 26, 31-37.
16.
Silverstein, A. B.An alternative factor analytic solution for the Wechsler Intelligence Scale for Children. Educational and Psychological Measurement, 1969, 29, 763-767.
17.
Silverstein, A. B.An alternative factor analytic solution for the Wechsler Intelligence Scale for Children-Revised. Educational and Psychological Measurement, 1977, 37, 121-124.
18.
Silverstein, A. B.Pattern analysis as simultaneous statistical inference. Journal of Consulting and Clinical Psychology, 1982, 50, 234-240.
19.
Wechsler, D.Manual for the Wechsler Adult Intelligence Scale-Revised. New York: Psychological Corporation, 1981.
20.
Wrigley, C.A procedure for objective factor analysis. Paper presented at the first annual meeting of the Society of Multivariate Experimental Psychology, 1960.
