Contribution of Executive Functions and Dual-Tasking on Performance on the Edinburgh Virtual Errands Tests (EVET): An Individual Difference Study
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This individual differences study reports the role of Executive Function tests of Shifting, Updating and Inhibition, as well as Dual-Tasking and IQ on performance within the Edinburgh Virtual Errands Test (EVET). 62 healthy young adults between 18-35 where tested in this study. The stimulus used in this study was Dual-Tasking (Della Sala, Foley, Beschin, Allerhand, & Logie, 2010), EVET (Logie, Trawley, & Law, 2010), DKEFS Category Switching, DKEFS Color-Word Interference, Letter Number Sequencing (Wechsler Adult Intelligence Scale), and the National Adult Reading Test (Nelson, 1982). A significant correlation was found between Dual-Tasking and Inhibition, although no other significant correlations where found between the variables. Regression analysis revealed that Inhibition accounted for 5.5% of the variance in performance on the EVET. Further post-hoc analysis was conducted to examine the unexplained variance. Regression analysis revealed that Memory and Processing Speed accounted for 41.5% of the variance within the EVET.