The Construct Validity of Intellect and Openness as Distinct Aspects of Personality through Differential Associations with Reaction Time

Author:

Willoughby Emily A.1ORCID,Kim Yuri1,Lee James J.1ORCID,DeYoung Colin G.1

Affiliation:

1. Department of Psychology, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA

Abstract

The construct validity of group factor models of personality, which are typically derived from factor analysis of questionnaire items, relies on the ability of each factor to predict meaningful and differentiated real-world outcomes. In a sample of 481 participants, we used the Big Five Aspect Scales (BFAS) personality questionnaire, two laboratory-measured reaction time (RT) tasks, and a short-form test of cognitive ability (ICAR-16) to test the hypothesis that the Intellect and Openness aspects of Big Five Openness to Experience differentially correlate with reaction time moments. We found that higher scores on the Intellect aspect significantly correlate with faster and less variable response times, while no such association is observed for the Openness aspect. Further, we found that this advantage lies solely in the decisional, but not perceptual, stage of information processing; no other Big Five aspect showed a similar pattern of results. In sum, these findings represent the largest and most comprehensive study to date on personality factors and reaction time, and the first to demonstrate a mechanistic validation of BFAS Intellect through a differential pattern of associations with RT and Big Five personality aspects.

Funder

University of Minnesota OVPR Grant-in-Aid of Research, Artistry and Scholarship

Publisher

MDPI AG

Subject

Cognitive Neuroscience,Developmental and Educational Psychology,Education,Experimental and Cognitive Psychology

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