Joint Factor Analysis of the Woodcock-Johnson Psychoeducational Battery-Revised and the Detroit Tests of Learning Aptitude-Adult

The organization of cognitive factors in a sample of older adults was investigated by a joint factor analysis of the subtests from the Woodcock-Johnson Psychoeducational Battery-Revised (WJ-R) and the Detroit Tests of Learning Aptitude-Adult (DTLA-A). Two extensive batteries were administered, follo...

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Bibliographic Details
Main Author McGhee, Ron
Format Report
LanguageEnglish
Published 01.11.1994
Subjects
Cognitive Ability
Detroit Tests of Learning Aptitude
Factor Analysis
Factor Structure
Intelligence
Intelligence Tests
Middle Aged Adults
Older Adults
Scores
Test Results
Woodcock Johnson Psycho Educational Battery
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Summary:The organization of cognitive factors in a sample of older adults was investigated by a joint factor analysis of the subtests from the Woodcock-Johnson Psychoeducational Battery-Revised (WJ-R) and the Detroit Tests of Learning Aptitude-Adult (DTLA-A). Two extensive batteries were administered, following R. W. Woodcock's recommendation that in order for factors to be identified, a sufficient number of markers for each factor must be present. Subjects for the study were 41 adults ranging in age from 55 to 76 years. Altogether, 9 sets of exploratory and confirmatory factor analyses on 29 variables were conducted. The results provide evidence for nine latent factors based on the theory of fluid and crystallized intelligence (Gf-Gc) theory of intelligence of J. L. Horn and R. B. Cattell (1966). Theoretical and practical implications of the findings are discussed. (Contains 8 tables and 21 references.) (Author/SLD)