title: Morningness-eveningness and intelligence: early to bed, early to rise will likely make you anything but wise!
abstract: Research examining various psychological correlates of circadian type (also known as diurnal preference) has been, over the years, quite expansive. A notable omission within this research program would appear a systematic exploration of the relation between intelligence and morningness-eveningness. The present study redressed this imbalance. 420 participants performed two self-report inventories assessing circadian type, as well as measures of intelligence from two psychometric batteries: CAM-IV and the ASVAB. The results indicate that, contrary to conventional folk wisdom, evening-types are more likely to have higher intelligence scores. This result is discussed in relation to current theories concerning the nature of human cognitive abilities.
authors.affiliation: Department of Psychology, University of Sydney, Australia.
authors.forename: R D
authors.initials: RD
authors.lastname: Roberts
authors.forename: P C
authors.initials: PC
authors.lastname: Kyllonen
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001077:Aptitude Tests; D002940:Circadian Rhythm; D003071:Cognition; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D008568:Memory; D008889:Military Personnel / Q000523:psychology; D011594:Psychometrics; D011795:Surveys and Questionnaires; D014481:United States