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| Reynolds, Cecil R. | 1 |
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Peer reviewedReynolds, Cecil R. – Journal of School Psychology, 1979
The Peabody Individual Achievement Test was factor analyzed at five grade levels. Subtests composing each factor changed from the lower to upper grade levels, but abilities measured by each factor appeared constant. A close similarity between the two factors and Cattell's concept of fluid and crystallized intelligence was noted. (Author)
Descriptors: Achievement Tests, Cognitive Ability, Comparative Testing, Elementary Secondary Education
