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Processing Speed and Intelligence as Predictors of School Achievement: Mediation or Unique Contribution?
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Dodonova, Yulia A.; Dodonov, Yury S. – Intelligence, 2012
The relationships between processing speed, intelligence, and school achievement were analyzed on a sample of 184 Russian 16-year-old students. Two speeded tasks required the discrimination of simple geometrical shapes and the recognition of the presented meaningless figures. Raven's Advanced Progressive Matrices and the verbal subtests of…
Descriptors: Cognitive Processes, Intelligence, Academic Achievement, Adolescents
Reversing the Speed-IQ Correlation: Intra-Individual Variability and Attentional Control in the Inspection Time Paradigm
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Fox, Mark C.; Roring, Roy W.; Mitchum, Ainsley L. – Intelligence, 2009
Elementary cognitive tasks (ECTs) are simple tasks involving basic cognitive processes for which speed of performance typically correlates with IQ. Inspection time (IT) has the strongest IQ correlations and is considered critical evidence for neural speed underlying individual differences in intelligence. However, results from Bors et al. [Bors,…
Descriptors: Intelligence, Intelligence Quotient, Cognitive Processes, Correlation
The G-Loading of Intelligence Tests and Their Relationship with Reaction Times: A Comment on Ruchalla Et Al.
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Vernon, Philip A. – Intelligence, 1986
Ruchalla, Schalt, and Vogel (1985) reported a negative correlation between the g-loadness of intelligence subtests and the extent to which the subtests correlated with reaction times. Possible methodological problems with Ruchalla et al. are described, and results of two other studies pertinent to the issue are discussed. (Author/LMO)
Descriptors: College Students, Correlation, Higher Education, Intelligence Tests