Various taxonomies of Raven's Advanced Progressive Matrices (APM) items have been proposed in the literature to account for performance on the test. In the present article, three such taxonomies based on information processing, namely Carpenter, Just and Shell's [Carpenter, P.A., Just, M.A., & Shell, P., (1990). What one intelligence test…

Tested 133 college students in Germany with new tasks and 6 working memory marker tasks. Results reveal three working memory functions: simultaneous storage and processing; supervision; and coordination of elements into structures. Each function could be subdivided into distinct components of variance. (SLD)

The mental representations and processes used in verbal comprehension were studied in 2 preliminary studies and 2 experiments involving a total of 158 college students solving synonym or sentence completion tasks. Response choices and latencies could be predicted with explicit information-processing models. Implications for theories of…

The relationship between psychometric intelligence and 2 selective reaction time (RT) tasks was determined for 81 university students (27 males and 54 females). Results generally support the paradigm of W. E. Hick (1952). Some surprising findings are discussed with respect to the specific demands of selective RT tasks. (SLD)

Presents two experiments involving 16 and 14 college students that were designed to enhance the sensitivity of reaction time as an information-processing correlate of general ability. Data from both are interpreted in terms of mental efficiency theories of intelligence. (SLD)

Examined the effects of practice, response strategies, and attentiveness on inspection time (IT) and its relation to IQ in 3 experiments involving 102 college students, testing the hypothesis that mental speed is the basis for the observed IT-IQ relation. Discusses the mixed results and evidence that the correlation is malleable. (SLD)

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…

A study with 179 Australian college students casts doubts on the usefulness of the theoretical model of human information processing postulated by S. Lehrl and B. Fischer (1990). Instead of reflecting properties of a limited capacity system, the Basic Unit of Information Processing (BIP) seems to be a marker for reading speed. (SLD)

Studied the contribution of preattentive processes to the cognitive speed-ability relationship for 80 participants. Results reveal an increase in ability-related variances due to the stimulation of preattentive processes. Coefficients for a structural equation model indicated that preattentive processes exerted a stronger effect on cognitive…

The relationship between speed of information processing (SIP) and psychometric intelligence was investigated by giving 60 college students (22 males and 38 females) 2 choice reaction time (RT) tests (modified Hick paradigm) and Raven's Advanced Progressive Matrices. Results support an association between intelligence and SIP. (SLD)

The influences of memory load and encoding on sex differences in performance of comparison and decision processes--matching digits and letters--were studied in 3 experiments with 189 male and 188 female college students. A sex difference in comparison processes may be influenced by the code used when making comparisons. (SLD)

Cognitive processes underlying the empirical correlation between IQ and choice reaction time (CHRT) were examined using the Culture Fair Intelligence Test and nine CHRT tasks (N=50 university students). IQ predicted well for simple control tasks and available attention, but not for attention flexibility, feature extraction, or response choices…

Correlations among peripheral nerve conduction velocity (NCV), brain NCV, simple and choice reaction times, and a standard measure of intelligence were investigated for 200 male college students. No correlation was found between any arm NCV and the intelligence score. Neurophysiological bases of human information processing and intelligence are…

The latency and amplitude of the P300, an event-related potential, during the performance of a memory-scanning task were used as indices of the efficiency of information processing that may mediate individual differences in intelligence. Results with 61 female college students contradict a pure speed of processing explanation of the relationship…

The performance of 136 college students at the University of Western Ontario (Canada) on various parameters of two well-known puzzles was compared with performance on a measure of general intelligence and the Hidden Figures Test. An interpretation of the results is provided by Sternberg's experimental subtheory of intelligence. (SLD)