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Developmental Changes in Speed of Information Processing in Young Children.
Peer reviewed Peer reviewed
Miller, Linda T.; Vernon, Philip A. – Developmental Psychology, 1997
Used computer-administered tests to measure the reaction time to nonverbal stimuli of 4- through 6-year-olds and adults. Found age-related increases in processing speed that could not be attributed to increased accuracy and error rate monitoring. Used these results to evaluate R. Kail's (1991) model of processing speed, which adequately accounted…
Descriptors: Adults, Age Differences, Cognitive Development, Cognitive Processes
Reaction Time and Intelligence in the Mentally Retarded.
Peer reviewed Peer reviewed
Vernon, Philip A. – Intelligence, 1981
Mildly retarded young adults were given simple and choice reaction time (RT) tests. Subjects' RTs increased with stimulus complexity. RTs of retarded subjects were slower and evidenced more intraindividual variability than those of nonretarded subjects. Several RT parameters were related to measures of intelligence. (Author/RD)
Descriptors: Adults, Cognitive Processes, Correlation, Factor Analysis
Intelligence, Reaction Times, and Peripheral Nerve Conduction Velocity.
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Vernon, Philip A.; Mori, Monica – Intelligence, 1992
In 2 studies with 85 and 88 undergraduates, respectively, peripheral nerve conduction velocity (NCV) was significantly correlated with IQ score and reaction times, and NCV and reaction time contributed significantly, in combination, to prediction of IQ. Results are interpreted in terms of a neural efficiency model of intelligence. (Author/SLD)
Descriptors: Cognitive Processes, Correlation, Higher Education, Intelligence
Reaction Times and Speed of Processing: Their Relationship to Timed and Untimed Measures of Intelligence.
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Vernon, Philip A.; And Others – Intelligence, 1985
Eighty-one university students were given a battery of reaction time tests and a group test of intelligence which yielded timed and untimed scores. Multiple regression analyses indicated that speed of information-processing was an equally good predictor of timed and untimed intelligence test performance. (Author/LMO)
Descriptors: Cognitive Processes, Conceptual Tempo, Correlation, Higher Education
Speed of Information Processing and General Intelligence.
Peer reviewed Peer reviewed
Vernon, Philip A. – Intelligence, 1983
This study investigated the relationship between measures of speed of cognitive information processing and intelligence test scores. Cognitive processing measures were significantly related to IQ scores. Reaction time tests measure cognitive operations basic to intelligence, and individual differences in intelligence are partly due to variability…
Descriptors: Cognitive Processes, Correlation, Factor Analysis, Higher Education
The General Factor in Short-Term Memory, Intelligence, and Reaction Time.
Peer reviewed Peer reviewed
Miller, Linda T.; Vernon, Philip A. – Intelligence, 1992
The general intelligence factor (g) was investigated using 170 university students across three batteries of ability measures: (1) a short-term memory battery; (2) the Multidimensional Aptitude Battery; and (3) a reaction time battery. Results support the notion of g and suggest short-term memory as an essential aspect of intelligence. (SLD)
Descriptors: Ability, Aptitude Tests, Cognitive Processes, College Students
Individual and Group Differences in Intelligence and Speed of Information Processing.
Vernon, Philip A.; Jensen, Arthur R. – 1983
In a study of the relationship between speed of information processing and general intelligence, vocational college students (50 black males and 56 white males) took eight different reaction time tests measuring the speed with which individuals perform various elementary cognitive processes, and a group test of scholastic aptitude (the Armed…
Descriptors: Academic Achievement, Aptitude Tests, Blacks, Cognitive Processes