Objective: The present study examined the relationships between elementary cognitive tasks (ECTs) and specific Delis–Kaplan Executive Function System (DKEFS) scores shown to load on Miyake et al.’s (2000) three-factor model of executive function (EFs). Method: A sample of 175 college students (ages 18-40) were administered two ECTs measuring perceptual-motor skills (0- & 1-bit non-EF tasks) and two ECTs measuring executive control (1- & 2-bit EF tasks), as well as the DKEFS Sorting Test, Color-Word Test, and Verbal Fluency Test to assess Shifting, Inhibition, and Updating, respectively. Predetermined D-KEFS scores were factor analyzed, yielding three factors. Hierarchical regression analyses using D-KEFS factor scores were performed to examine the contributions of Shifting, Inhibition, and Updating to the ECTs. Results: Inhibition uniquely explained 25% and 21% of the variance in the 0- and 1-bit non-EF tasks, respectively, and 24% and 39% of the variance in the 1- and 2-bit EF tasks, respectively. Sorting...

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