Redefining the factor structure of the Wechsler Memory Scale-III: confirmatory factor analysis with cross-validation.
The purpose of this study was to revisit the underlying factor structure of the Wechsler Memory Scale-III. The WMS-III Technical Manual (Wechsler, 1997) presented findings from confirmatory factor analyses that support a three- and five-factor solution with separate immediate and delayed memory factors. A rigorous structural equation modeling approach was used to examine the factor structure of the test. The results verify that a three-factor model composed of verbal (immediate and delayed), visual (immediate and delayed), and working memory factors accurately represents the factor structure of the WMS-III. Results were cross-validated on an independent sample.
Southwest Texas State University, San Marcos, TX 78666, USA. lrprice@mindspring.com
Larry
L
Price
David
D
Tulsky
Scott
S
Millis
Larry
L
Weiss
D000293:Adolescent; D000328:Adult; D000368:Aged; D016009:Chi-Square Distribution; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D008875:Middle Aged; D008960:Models, Psychological; D011594:Psychometrics; D012015:Reference Standards; D015203:Reproducibility of Results; D014888:Wechsler Scales / Q000592:standards / Q000706:statistics & numerical data*