Inspection time and the relationship among elementary cognitive tasks, general intelligence, and specific cognitive abilities |
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| Authors: | Stephen A. Petrill Dasen Luo Lee Anne Thompson Douglas K. Detterman |
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| Affiliation: | a Department of Psychology, Wesleyan University, 207 High Street, Middletown, CT 06459-0408, USA;b Indiana University of Pennsylvania, Indiana, PA, USA;c Case Western Reserve University, Cleveland, OH, USA |
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| Abstract: | The relationship between inspection time (IT) and paper-and-pencil tests of cognitive ability is well documented. However, the extent to which IT relates to cognitive ability through general intelligence or through group factors such as performance has not been fully addressed. Another unresolved issue is whether IT relates to psychometric intelligence independent from other elementary cognitive tasks. The current study examined these issues in a sample of 6–13-year-old twins drawn from the Western Reserve Twin Project (WRTP) (n=568 participants). Analyses suggest that IT and other elementary tasks predict general intelligence. IT also predicts Performance ability while other elementary tasks do not. Furthermore, IT contributes variance to cognitive ability independent from other elementary tasks. These suggest that multiple indices of elementary cognitive ability are necessary to fully understand their relationship with complex psychometric measures. |
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| Keywords: | Intelligence Elementary tasks Inspection time Speed of process |
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