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Direct linkJohnson, Wendy; Deary, Ian J. – Intelligence, 2011
The idea that information processing speed is related to cognitive ability has a long history. Much evidence has been amassed in its support, with respect to both individual differences in general intelligence and developmental trajectories. Two so-called elementary cognitive tasks, reaction time and inspection time, have been used to compile this…
Descriptors: Intelligence, Reaction Time, Cognitive Processes, Cognitive Ability
Major, Jason T.; Johnson, Wendy; Deary, Ian J. – Intelligence, 2012
Three prominent theories of intelligence, the Cattell-Horn-Carroll (CHC), extended fluid-crystallized (Gf-Gc) and verbal-perceptual-image rotation (VPR) theories, provide differing descriptions of the structure of intelligence (McGrew, 2009; Horn & Blankson, 2005; Johnson & Bouchard, 2005b). To compare these theories, models representing them were…
Descriptors: Intelligence, Achievement Tests, Factor Structure, Models
Johnson, Wendy; te Nijenhuis, Jan; Bouchard, Thomas J., Jr. – Intelligence, 2007
In two recent papers, Johnson & Bouchard [Johnson, W., & Bouchard, T. J., Jr. (2005a). The structure of human intelligence: It is verbal, perceptual, and image rotation (VPR) , not fluid and crystallized. "Intelligence," 33, 393-416, Johnson W., & Bouchard, T. J., Jr. (2005b). Constructive replication of the visual…
Descriptors: Visual Perception, Models, Cognitive Ability, Intelligence
Johnson, Wendy; Bouchard, Thomas J.; McGue, Matt; Segal, Nancy L.; Tellegen, Auke; Keyes, Margaret; Gottesman, Irving I. – Intelligence, 2007
In previous papers [Johnson, W., & Bouchard Jr., T. J. (2005a). Constructive Replication of the Visual-Perceptual-Image Rotation (VPR) Model in Thurstone's (1941) Battery of 60 Tests of Mental Ability. Intelligence, 33, 417-430.] [Johnson, W., & Bouchard Jr., T. J. (2005b). The Structure of Human Intelligence: It's Verbal, perceptual, and image…
Descriptors: Intelligence, Twins, Genetics, Environmental Influences
Johnson, Wendy; Bouchard, Thomas J., Jr. – Intelligence, 2007
Recent work with the 42 mental ability tests administered to participants of the Minnesota Study of Twins Reared Apart (MISTRA) has suggested that there are important dimensions of mental ability that function independently of "g". Two of these dimensions, rotation-verbal and focus-diffusion, appear to involve trade-offs: greater…
Descriptors: Cognitive Ability, Verbal Ability, Brain, Intelligence
Johnson, Wendy; Bouchard, Thomas J., Jr. – Intelligence, 2007
Empirical data suggest that there is at most a very small sex difference in general mental ability, but men clearly perform better on visuospatial tasks while women clearly perform better on tests of verbal usage and perceptual speed. In this study, we integrated these overall findings with predictions based on the Verbal-Perceptual-Rotation (VPR)…
Descriptors: Gender Differences, Cognitive Ability, Visual Perception, Verbal Ability
