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Individual Differences in General Intelligence Correlate with Brain Function during Nonreasoning Tasks.
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Haier, Richard J.; White, Nathan S.; Alkire, Michael T. – Intelligence, 2003
Administered Raven's Advanced Progressive Matrices to 22 adults and measured cerebral glucose activity as subjects viewed videos on 2 occasions. Data provide evidence that individual differences in intelligence correlate with brain function even when the brain is engaged in non-reasoning tasks. (SLD)
Descriptors: Adults, Individual Differences, Intelligence
The Nature of Psychometric "g": Unitary Process or a Number of Independent Processes?
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Kranzler, John H.; Jensen, Arthur R. – Intelligence, 1991
This study investigated whether a unitary elemental process or several independent processes underlie psychometric "g" (factor of general intelligence). Results with 101 college students administered 2 intelligence tests and a large battery of elementary cognitive tasks suggest that as many as 4 independent components make up…
Descriptors: Cognitive Measurement, College Students, Factor Structure, Higher Education
No Demonstration That "g" Is Not Unitary, but There's More to the Story: Comment on Kranzler and Jensen.
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Carroll, John B. – Intelligence, 1991
Because they used an inappropriate statistical procedure, J. H. Kranzler and A. R. Jensen (1991) have not demonstrated that a factor of general intelligence ("g") depends on several independent factors. A factorial reanalysis of their data suggests that speed and efficiency of information processing are important in "g." (SLD)
Descriptors: Cognitive Measurement, College Students, Factor Analysis, Factor Structure