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The Factor Structure of the WAIS-R: Replicability across Age-Groups.
Peer reviewed Peer reviewed
Cliff, Norman; Caruso, John C. – Multivariate Behavioral Research, 1998
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)
Descriptors: Adults, Age Differences, Factor Analysis, Factor Structure
The Structure of Cognitive Speed Measures in Old and Young Adults.
Peer reviewed Peer reviewed
Tomer, Adrian; Cunningham, Walter R. – Multivariate Behavioral Research, 1993
Structure of measures of speed was studied by conducting simultaneous confirmatory factor analysis for 1 sample of 149 elderly adults and a sample of 147 young adults using 16 measures of speed. Five first-order factors of speed were found, as hypothesized, and three second-order speed factors were necessary. (SLD)
Descriptors: Age Differences, Cognitive Processes, Comparative Analysis, Factor Structure
The Age Comparative Construct Validity of Speeded Cognitive Factors.
Peer reviewed Peer reviewed
White, Nancy; Cunningham, Walter R. – Multivariate Behavioral Research, 1987
Speeded cognitive processing tasks involving card sorting and reaction time were administered to 141 young adults aged 18 to 33 and to 142 elderly adults aged 58 to 73. Confirmatory factor analysis was unsuccessful, but independent analyses revealed different factors for the two age groups. (Author/GDC)
Descriptors: Adults, Age Differences, Cognitive Measurement, Comparative Analysis