Factorial invariance for combined Wechsler Adult intelligence Scale-Revised and Wechsler Memory Scale-Revised scores in a sample of clients with alcohol dependency

S. C. Bowden*, A. J. Ritter, J. R. Carstairs, E. A. Shores, J. Pead, J. D. Greeley, G. Whelan, C. M. Long, C. C. Clifford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

This study examined the joint factor structure of the WAIS-R and WMS-R in a sample of 289 participants (mostly males) with alcohol dependency. In a confirmatory phase we contrasted a range of factor models derived from previous analyses of the Wechsler scales. The best fitting model incorporated five factors representing Verbal Comprehension, Perceptual Organization, Attention-Concentration, Verbal Memory, and Visual Memory, with reassignment of factor loadings for two subtests. The invariance of the measurement model was then examined comparing data from a large sample of healthy participants (J. R. Carstairs & E. A. Shores, 1999). The results indicated that the number of factors was invariant across samples, and four of the factors satisfied the criterion of partial measurement invariance.

Original languageEnglish
Pages (from-to)69-80
Number of pages12
JournalClinical Neuropsychologist
Volume15
Issue number1
DOIs
Publication statusPublished - 2001
Externally publishedYes

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