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The '''morningness–eveningness questionnaire''' ('''MEQ''') is a self-assessment [[questionnaire]] developed by James A. Horne and Olov Östberg in 1976.<ref name="horneostberg">{{cite journal |author=Horne, JA, Östberg O |year=1976 |title=A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms |journal=International Journal of Chronobiology |volume=4 |issue=2 |pages=97-110 |pmid=1027738}}</ref> Its main purpose is to measure whether a person's [[circadian rhythm]] (biological clock) puts their peak alertness in the morning, in the evening, or in between. The original study showed that the subjective time of peak alertness correlates with the time of [[Thermoregulation#Variations due to circadian rhythms|peak body temperature]]; morning types ([[Lark (person)|early birds]]) have an earlier temperature peak than evening types ([[Night owl (person)|night owls]]), with intermediate types having temperature peaks between the morning and evening [[chronotype]] groups. The MEQ is widely used in psychological and medical research and has been professionally cited more than 3,000 times.<ref>http://scholar.google.com/scholar?q=horne+ostberg+1976</ref> |
The '''morningness–eveningness questionnaire''' ('''MEQ''') is a self-assessment [[questionnaire]] developed by researchers James A. Horne and Olov Östberg in 1976.<ref name="horneostberg">{{cite journal |author=Horne, JA, Östberg O |year=1976 |title=A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms |journal=International Journal of Chronobiology |volume=4 |issue=2 |pages=97-110 |pmid=1027738}}</ref> Its main purpose is to measure whether a person's [[circadian rhythm]] (biological clock) puts their peak alertness in the morning, in the evening, or in between. The original study showed that the subjective time of peak alertness correlates with the time of [[Thermoregulation#Variations due to circadian rhythms|peak body temperature]]; morning types ([[Lark (person)|early birds]]) have an earlier temperature peak than evening types ([[Night owl (person)|night owls]]), with intermediate types having temperature peaks between the morning and evening [[chronotype]] groups. The MEQ is widely used in psychological and medical research and has been professionally cited more than 3,000 times.<ref>http://scholar.google.com/scholar?q=horne+ostberg+1976</ref> |
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==MEQ questions== |
==MEQ questions== |
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The MEQ consists of 19 multiple-choice questions, each having four or five response options. Some example questions are:<ref name="horneostberg"/> |
The standard MEQ consists of 19 multiple-choice questions, each having four or five response options. Some example questions are:<ref name="horneostberg"/> |
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{{blockquote| |
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1. What time would you get up if you were entirely free to plan your day?<br> |
1. What time would you get up if you were entirely free to plan your day?<br> |
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Responses to the questions are combined to form a composite score that indicates the degree to which the respondent favors morning versus evening. Subsequent researchers have created shorter versions with four,<ref>{{cite journal |author=Jankowski KS |year=2013 |doi=10.1080/09291016.2012.704791 |title=Polish version of the reduced Morningness–Eveningness Questionnaire |journal=Biological Rhythm Research |volume=44 |issue=3 |pages=427-433}}</ref> five,<ref>{{cite journal |author=Adan A, Almirall H |year=1991 |title=Horne and Östberg Morningness-Eveningness Questionnaire: a reduced scale |journal=Personality and Individual Differences |volume=12 |issue=3 |pages=241-253}}</ref> or six questions.<ref>{{cite journal |author=Urbán R, Magyaródi T, Rigó A |year=2011 |title=Morningness-eveningness, chronotypes and health-impairing behaviors in adolescents |journal= |
Responses to the questions are combined to form a composite score that indicates the degree to which the respondent favors morning versus evening. Subsequent researchers have created shorter versions with four,<ref>{{cite journal |author=Jankowski KS |year=2013 |doi=10.1080/09291016.2012.704791 |title=Polish version of the reduced Morningness–Eveningness Questionnaire |journal=Biological Rhythm Research |volume=44 |issue=3 |pages=427-433}}</ref> five,<ref>{{cite journal |author=Adan A, Almirall H |year=1991 |doi=10.1016/0191-8869(91)90110-W |title=Horne and Östberg Morningness-Eveningness Questionnaire: a reduced scale |journal=Personality and Individual Differences |volume=12 |issue=3 |pages=241-253}}</ref> or six questions.<ref>{{cite journal |author=Urbán R, Magyaródi T, Rigó A |year=2011 |doi=10.3109/07420528.2010.549599 |title=Morningness-eveningness, chronotypes and health-impairing behaviors in adolescents |journal=Chronobiology International |volume=28 |issue=3 |pages=238-247 |pmid=21452919 |pmc=3818690}}</ref> |
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==Related research== |
==Related research== |
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According to a 1997 study of identical and fraternal [[twin]]s, 54% of variance in morningness–eveningness was due to genetic variability, 3% was due to age, and the rest was explained by non-shared environmental influences and errors in measurement.<ref>{{cite journal |author=Hur YM, Bouchard TJ, Lykken DT |year= |
According to a 1997 study of identical and fraternal [[twin]]s, 54% of variance in morningness–eveningness was due to genetic variability, 3% was due to age, and the rest was explained by non-shared environmental influences and errors in measurement.<ref>{{cite journal |author=Hur YM, Bouchard TJ, Lykken DT |year=1998 |doi=10.1016/S0191-8869(98)00089-0 |title=Genetic and environmental influence on morningness-eveningness |journal=Personality and Individual Differences |volume=25 |issue=5 |pages=917-925}}</ref> |
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A study in 2000 showed that both "morningness" and "eveningness" participants performed poorly in the morning on the Multidimensional Aptitude Battery (MAB) tests. It thus did not support the hypothesis that there is a reliable relationship between morningness–eveningness, time of day, and [[cognitive ability]].<ref>{{cite journal |author=Song J, Stough C |year=2000 |title=The relationship between morningness-eveningness, time-of-day, speed of information processing and intelligence |journal=Personality and Individual Differences |volume=29 |pages=1179-1190}}</ref> |
A study in 2000 showed that both "morningness" and "eveningness" participants performed poorly in the morning on the Multidimensional Aptitude Battery (MAB) tests. It thus did not support the hypothesis that there is a reliable relationship between morningness–eveningness, time of day, and [[cognitive ability]].<ref>{{cite journal |author=Song J, Stough C |year=2000 |doi=10.1016/S0191-8869(00)00002-7 |url=http://www.researchgate.net/profile/Con_Stough/publication/247166847_The_relationship_between_morningnesseveningness_time-of-day_speed_of_information_processing_and_intelligence/links/54aa8f420cf2ce2df668a157.pdf |title=The relationship between morningness-eveningness, time-of-day, speed of information processing and intelligence |journal=Personality and Individual Differences |volume=29 |issue=6 |pages=1179-1190}}</ref> |
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A study in 2008 examined the relationship between morningness and [[anxiety]] in adults aged 40–63. It found a negative correlation in women, but not in men, suggesting that gender-related variables may be attributed to morningness and eveningness when looking at anxiety.<ref>{{cite journal |author=Diaz-Morales JF, Sanchez-Lopez MP |year=2008 |title=Morningness-eveningness and anxiety among adults: A matter of sex/gender? |journal=Personality and Individual Differences |volume=44 |pages=1391-1401}}</ref> |
A study in 2008 examined the relationship between morningness and [[anxiety]] in adults aged 40–63. It found a negative correlation in women, but not in men, suggesting that gender-related variables may be attributed to morningness and eveningness when looking at anxiety.<ref>{{cite journal |author=Diaz-Morales JF, Sanchez-Lopez MP |year=2008 |doi=10.1016/j.paid.2007.12.007 |url=http://www.researchgate.net/profile/Juan_Diaz-Morales/publication/235407996_Morningness-eveningness_and_anxiety_among_adults_A_matter_of_sexgender/links/02e7e516ee0851ad4f000000.pdf |title=Morningness-eveningness and anxiety among adults: A matter of sex/gender? |journal=Personality and Individual Differences |volume=44 |issue=6 |pages=1391-1401}}</ref> |
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A study in 2009 examined differences between evening and morning types in the timing of [[melatonin]] and core body temperature rhythms as well as objective and subjective sleepiness rhythms in a controlled laboratory protocol. The evening types had significantly later timed rhythms for all these variables, particularly that of maximum alertness, which occurred, on average, in the middle of the day for morning types but only four hours before bedtime for evening types.<ref>{{cite journal |url=http://www.dovepress.com/ |
A study in 2009 examined differences between evening and morning types in the timing of [[melatonin]] and core body temperature rhythms as well as objective and subjective sleepiness rhythms in a controlled laboratory protocol. The evening types had significantly later timed rhythms for all these variables, particularly that of maximum alertness, which occurred, on average, in the middle of the day for morning types but only four hours before bedtime for evening types.<ref>{{cite journal |url=http://www.dovepress.com/getfile.php?fileID=5433 |author=Lack L, Bailey M, Lovato N, Wright H |year=2009 |doi=10.2147/NSS.S6234 |title=Chronotype differences in circadian rhythms of temperature, melatonin, and sleepiness as measured in a modified constant routine protocol |journal=Nature and Science of Sleep |volume=1 |pages=1-8}}</ref> |
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== See also == |
== See also == |
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Revision as of 05:45, 7 May 2015
The morningness–eveningness questionnaire (MEQ) is a self-assessment questionnaire developed by researchers James A. Horne and Olov Östberg in 1976.[1] Its main purpose is to measure whether a person's circadian rhythm (biological clock) puts their peak alertness in the morning, in the evening, or in between. The original study showed that the subjective time of peak alertness correlates with the time of peak body temperature; morning types (early birds) have an earlier temperature peak than evening types (night owls), with intermediate types having temperature peaks between the morning and evening chronotype groups. The MEQ is widely used in psychological and medical research and has been professionally cited more than 3,000 times.[2]
MEQ questions
The standard MEQ consists of 19 multiple-choice questions, each having four or five response options. Some example questions are:[1]
1. What time would you get up if you were entirely free to plan your day?
7. During the first half-hour after you wake up in the morning, how tired do you feel?
12. If you got into bed at 11:00 PM, how tired would you be?
17. Suppose you can choose your own work hours. Assume that you work a five-hour day (including breaks), your job is interesting, and you are paid based on your performance. At what time would you choose to begin?
Responses to the questions are combined to form a composite score that indicates the degree to which the respondent favors morning versus evening. Subsequent researchers have created shorter versions with four,[3] five,[4] or six questions.[5]
Related research
According to a 1997 study of identical and fraternal twins, 54% of variance in morningness–eveningness was due to genetic variability, 3% was due to age, and the rest was explained by non-shared environmental influences and errors in measurement.[6]
A study in 2000 showed that both "morningness" and "eveningness" participants performed poorly in the morning on the Multidimensional Aptitude Battery (MAB) tests. It thus did not support the hypothesis that there is a reliable relationship between morningness–eveningness, time of day, and cognitive ability.[7]
A study in 2008 examined the relationship between morningness and anxiety in adults aged 40–63. It found a negative correlation in women, but not in men, suggesting that gender-related variables may be attributed to morningness and eveningness when looking at anxiety.[8]
A study in 2009 examined differences between evening and morning types in the timing of melatonin and core body temperature rhythms as well as objective and subjective sleepiness rhythms in a controlled laboratory protocol. The evening types had significantly later timed rhythms for all these variables, particularly that of maximum alertness, which occurred, on average, in the middle of the day for morning types but only four hours before bedtime for evening types.[9]
See also
References
- ^ a b Horne, JA, Östberg O (1976). "A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms". International Journal of Chronobiology. 4 (2): 97–110. PMID 1027738.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ http://scholar.google.com/scholar?q=horne+ostberg+1976
- ^ Jankowski KS (2013). "Polish version of the reduced Morningness–Eveningness Questionnaire". Biological Rhythm Research. 44 (3): 427–433. doi:10.1080/09291016.2012.704791.
- ^ Adan A, Almirall H (1991). "Horne and Östberg Morningness-Eveningness Questionnaire: a reduced scale". Personality and Individual Differences. 12 (3): 241–253. doi:10.1016/0191-8869(91)90110-W.
- ^ Urbán R, Magyaródi T, Rigó A (2011). "Morningness-eveningness, chronotypes and health-impairing behaviors in adolescents". Chronobiology International. 28 (3): 238–247. doi:10.3109/07420528.2010.549599. PMC 3818690. PMID 21452919.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Hur YM, Bouchard TJ, Lykken DT (1998). "Genetic and environmental influence on morningness-eveningness". Personality and Individual Differences. 25 (5): 917–925. doi:10.1016/S0191-8869(98)00089-0.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Song J, Stough C (2000). "The relationship between morningness-eveningness, time-of-day, speed of information processing and intelligence" (PDF). Personality and Individual Differences. 29 (6): 1179–1190. doi:10.1016/S0191-8869(00)00002-7.
- ^ Diaz-Morales JF, Sanchez-Lopez MP (2008). "Morningness-eveningness and anxiety among adults: A matter of sex/gender?" (PDF). Personality and Individual Differences. 44 (6): 1391–1401. doi:10.1016/j.paid.2007.12.007.
- ^ Lack L, Bailey M, Lovato N, Wright H (2009). "Chronotype differences in circadian rhythms of temperature, melatonin, and sleepiness as measured in a modified constant routine protocol". Nature and Science of Sleep. 1: 1–8. doi:10.2147/NSS.S6234.
{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link)