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Updated: Mar 27, 2026

Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
Published on: September 20, 2020
The Hierarchical Organization of Cognitive Abilities: Restoring General Intelligence Through the Use of Linear
Abstract:
While considerable support has been obtained for the distinction, due to Cattell and Horn, between the broad factors fluid intelligence (Gf) and crystallized intelligence (Gc), there is also some evidence that Gf is equivalent to the factor of general intelligence (g). This hypothesis is investigated by using LISREL to specify higher-order models in reanalyses of three sets of psychometric data from subjects 11, 13, and 15 years old, respectively. The three studies unanimously showed Gf to be equivalent with a general factor. The discussion is centered upon the use of LISREL and the differences in results between the exploratory and confirmatory approaches to factor analysis.
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