Intelligence and spontaneous flexibility in adulthood and old age |
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Authors: | Norman R Schultz Daniel B Kaye William J Hoyer |
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Institution: | Clemson University, USA;Yale University, USA;Syracuse University, USA |
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Abstract: | Interrelationships among measures of intelligence and spontaneous flexibility were examined at two age levels using a multitrait-multimethod matrix design and other multivariate procedures. Measures of intelligence were Ravens Matrices and WAIS Vocabulary, WAIS Digit Symbol, and WAIS Similarities. Blots, Hidden Pictures, Brick Uses, and Impossibilities were used as measures of spontaneous flexibility. Subjects were 100 younger (X¯= 19.54,S.D.= 1.23) and 100 older (X¯= 63.99,S.D.= 2.94) men and women tested at two occasions. Adult age differences in factor structure were explored using a maximum likelihood analysis; common variances among the measures were greater for the elderly compared to the younger adults. Findings supported a dedifferentiation hypothesis with regard to both intelligence and spontaneous flexibility. |
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