Six hierarchical clustering methods were applied to subtest intercorrelations for each of the nine age groups in the Wechsler Adult Intelligence Scale-Revised (WAIS-R) standardization sample. Results point to the possibility of three simultaneously plausible solutions as they support each of the traditional factor structures in varying degrees.…

Examines the factor structure of the Wechsler Adult Intelligence Scale-Revised across nine age groups using several methods of factor analysis, including reliable component analysis (RCA). Factor structure is discussed, and the usefulness of the RCA method is demonstrated. (SLD)

Obtained a hierarchical factor solution on the Wechsler Adult Intelligence Scale-Revised (WAIS-R) subtest intercorrelations for the nine age groups included in the standardization sample. Findings support the validity of the WAIS-R as a measure of general intelligence and the validity of maintaining separate Verbal and Performance IQs. (Author)

With 101 healthy aging adult participants, the authors investigated whether executive functions are a unitary concept. The authors established the factor structure of the Wisconsin Card Sorting Test (WCST; E. A. Berg, 1948), the Stroop color and word test (C. J. Golden, 1978), verbal fluency using the Controlled Oral Word Association Test (COWAT;…

The standardization sample of the Wechsler Adult Intelligence Scale-Revised (WAIS-R) was the basis for an analysis of the WAIS-R subscales in relation to demographic variables. Canonical correlation with orthogonal rotation of composite structural components was performed in order to determine interrelations between both sets of variables.…

Aims of this study were to determine whether the factor structure produced in earlier research by Kear-Colwell (1973, 1977) on the Wechsler Memory Scale could be replicated in a non-patient population (most research uses patient populations) and also to examine the effects of age, sex, and social class on the performance of normal adults on this…

Reveals a two-factor structure (general retentiveness and memory) in the Wechsler Memory Scale for total male and female samples and for both males and females aged 13 to 39 years and 40 to 59 years but not for males or females aged 60 to 88 years. (Author/RL)