title: Comparison of the Munich Chronotype Questionnaire with the Horne-Ostberg's Morningness-Eveningness Score.
abstract: We report on results from an Internet survey of sleeping habits in a Dutch population using the Munich Chronotype Questionnaire (MCTQ), supplemented with the Horne-Ostberg Morningness-Eveningness Questionnaire (MEQ). The MCTQ was completed by 5,055 responders, of which 2,481 also completed the MEQ. MEQ score correlated well with the MCTQ assessment of time of mid-sleep on free days (MSF; r = - 0.73) and on workdays (MSW; r = - 0.61). MEQ was more strongly correlated with MSF (50% of sleep time) than with sleep onset (0%), rise time (100%), or with any other percentile (10 to 40, 60% to 90%) of sleep on free days. The study shows that chronotype (based on MSF as measured by the MCTQ) strongly correlates with morningness-eveningness (as measured by the MEQ). However, the MCTQ collects additional detailed information on sleep-wake behavior under natural conditions.
authors: Unit of Behavioural Biology, Human Chronobiology Research Group, University of Groningen, Haren, The Netherlands. a.g.zavada@rug.nl
authors: Andrei
authors: A
authors: Zavada
authors: Marijke C M
authors: MC
authors: Gordijn
authors: Domien G M
authors: DG
authors: Beersma
authors: Serge
authors: S
authors: Daan
authors: Till
authors: T
authors: Roenneberg
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001683:Biological Clocks; D002648:Child; D002909:Chronobiology Phenomena; D002940:Circadian Rhythm; D006801:Humans; D020407:Internet; D008875:Middle Aged; D009426:Netherlands; D017440:Photoperiod; D011594:Psychometrics; D012890:Sleep; D012892:Sleep Deprivation; D020178:Sleep Disorders, Circadian Rhythm / Q000175:diagnosis*; D013223:Statistics as Topic / Q000379:methods; D011795:Surveys and Questionnaires; D013997:Time Factors; D014851:Wakefulness