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,…

The relationship between speed of information processing and Intelligence Quotient (IQ) was examined in 62 college students using timed paper-and-pencil substitution tests to measure processing speed. A psychometrically better IQ test showed a strong linear relationship between mean time to code and its correlation with IQ; this relationship was…

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…

In a study on cognitive style, reflectivity-impulsivity in response to task uncertainty was investigaged. At 44 months of age, 23 boys and 25 girls were tested on a matching-figures test. Correlations were made between number of errors, response time, intelligence, and sex. Results indicated that there were significant sex differences in preschool…