Cross-cultural validity of Morningness-Eveningness Stability Scale improved (MESSi) in Iran, Spain and Germany

Rahafar, Arash; Randler, Christoph; Díaz‐Morales, Juan Francisco; Kasaeian, Ali; Heidari, Zeinab

doi:10.1080/07420528.2016.1267187

Cited by 38 publications

(27 citation statements)

References 32 publications

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“…Higher MA or EV scores represent higher morning and evening orientation, respectively, while higher DI values indicate higher daytime fluctuations. MESSi's factorial invariance, structure, and reliability have already been confirmed repeatedly in different languages [18,[20][21][22][23]. In addition, actigraphy data corroborated the validity of the MESSi [24].…”

Section: Chronotypesupporting

confidence: 56%

Changes in sleep schedule and chronotype due to COVID-19 restrictions and home office

Staller¹,

Randler

2020

Somnologie

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Background and objective In this study, we researched the effects of the COVID-19 restriction measures on the sleep health of N = 681 German residents (mean age: 28.63 years, SD: 10.49 years). Methods The data were collected with an anonymous online survey composed of validated questionnaires and additional questions to quantify changed circumstances during the pandemic. Data were collected from May 18 to June 17, 2020, while governmental restrictions were imposed in Germany. We exclusively analysed participants working in home office during this time. Results Participants woke up about 1 hour later during the COVID-19 restriction phase, while going to bed at almost the same time as before. During the week, participants slept about an hour longer, while sleep at weekends did not differ significantly. Social jetlag decreased from 1:39 ± 1:00 to 0:49 ± 0:42 min in our sample. The number of children in the household was a significant factor predicting sleep timing. Participants with children living in the same household slept longer and sleep onset was later. Conclusion In terms of sleep behaviour and, consequently, sleep health, participants benefited from the transition to home office. They were able to adapt their waking and working hours better to their biological rhythm, which reduced social jetlag.

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Section: Chronotypesupporting

confidence: 56%

Changes in sleep schedule and chronotype due to COVID-19 restrictions and home office

Staller¹,

Randler

2020

Somnologie

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“…Each subscale is composed of 5 items with a Likert response format coded from 1 to 5. MESSi's factorial structure and reliability Rodrigues et al, 2018;Tomazic & Randler, 2018) and its transcultural validity (factorial invariance) in Iran, Germany, and Spain (Rahafar, Randler, Díaz-Morales, Kasaeian, & Heidari, 2017) have been corroborated in four previous studies. The Cronbach's a of the scales in the current study was .872 for MA, .846 for EV, and .751 for DI.…”

Section: M/e and Chronotypementioning

confidence: 56%

Reproductive Success, Relationship Orientation, and Sexual Behavior in Heterosexuals: Relationship With Chronotype, Sleep, and Sex

et al. 2019

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Following previous studies, chronotype was related to sexual attitudes and behavior. Evening people tend to be more promiscuous and follow short-term mating strategies and extra-pair matings (EPM), which might lead to a higher reproductive success. In this study, one aim was to assess reproductive success directly by asking for children, and, second, to obtain a higher sample size for the analysis of sexual behavior and chronotype than in previous studies. N = 1,843 heterosexual persons (551 men, 1,288 women, 4 without data) responded to our online survey. Five hundred fifty-nine persons were single and 1,281 in a relationship; 203 reported having children (1.9 ± 0.81). Age was positively related and age at first intercourse was negatively related to the number of children. People being later chronotypes had fewer children, and shorter sleep duration was linked with more children. Extroversion was correlated with number of children, as was the long-term relationship orientation. Sociosexual orientation and EPM were unrelated to number of children. Age at first intercourse was earlier in evening people, and unrestricted sociosexuality was higher in late chronotypes. Morning orientation correlated with long-term relationship orientation and eveningness with short-term relationship orientation. Number of sexual partners was lower in morning people. Men were more evening oriented, later chronotypes, and slept shorter. There were no differences in sociosexual behavior, but men were less restricted in attitude and desire. Men scored higher on short-term relationship orientation and women higher on long-term relationship orientation. This study confirmed previous results about chronotype and sexual behavior but provided the first evidence that morningness was related to higher reproductive success.

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“…These validation studies showed at least satisfactory internal consistency values (Cronbach’ alphas varying between 0.73 and 0.87 for Morning Affect, 0.80 and 0.84 for Eveningness, and 0.69 and 0.77 for Distinctness). Rahafar et al (2017) further found the MESSi to be invariant at the configuration level only across the three countries involved in their study (Germany, Spain. and Iran); in other words, the three-factor model fitted acceptably for each country but the loadings and intercepts of items (particularly for the Eveningness measure) seem to differ across countries.…”

Section: Introductionmentioning

confidence: 85%

“…The MESSi has been submitted to several validation studies, namely in Germany, Spain, Iran, Portugal, and Slovenia (Randler et al, 2016a; Díaz-Morales and Randler, 2017; Diaz-Morales et al, 2017; Rahafar et al, 2017; Rodrigues et al, 2018; Tomažič and Randler, 2019). In short, all studies have replicated the three-factor internal structure (i.e., Morning Affect, Eveningness, and Distinctness) via exploratory (Randler et al, 2016a) or confirmatory factor analyses (Díaz-Morales and Randler, 2017; Diaz-Morales et al, 2017; Rahafar et al, 2017; Rodrigues et al, 2018). However, the factor structure has not been challenged by comparing a one-, two- or three-factor structure.…”

Section: Introductionmentioning

confidence: 99%

“…The literature on circadian preferences has also explored how these change throughout the development and if there are differences between sexes. Studies that have assessed chronotype using the MESSi, have revealed inconsistent sex differences on Morning Affect and Eveningness (e.g., Díaz-Morales and Randler, 2017; Diaz-Morales et al, 2017; Rahafar et al, 2017). This inconsistency mimics that obtained when other instruments are used to asses chronotype and may be a result of (low) sample size and high variation in age (Randler, 2007; Adan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Factorial Structure of the Morningness-Eveningness-Stability-Scale (MESSi) and Sex and Age Invariance

et al. 2019

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Assessing morningness-eveningness preferences (chronotype), an individual characteristic that is mirrored in daily mental and physiological fluctuations, is crucial given their overarching influence in a variety of domains. The current work aimed to investigate the best factor structure of an instrument recently presented to asses this characteristic: the Morningness-Eveningness-Stability-Scale improved (MESSi). For the first time, the originally proposed three-factor structure was pitched against a uni- and a two-factor solution. Another novelty was to establish that the best-fitting model would be invariant in relation to sex and age, two variables that influence chronotype. A Confirmatory Factor Analyses on the data obtained from a sample of 2096 German adults (age: 18–76; M = 25.5, SD = 7.64) revealed that the originally proposed three-factor structure of the MESSi – Morning Affect, Eveningness, and Distinctness – was the only one to achieve acceptable fit indicators. Furthermore, each scale obtained good internal consistency. In order to assess age invariance, following the literature on development and chronotype, our sample was divided into three age groups: 18–21 years, 22–31 years, and 32 years or older. Full measurement invariance of the three-factor model was found for sex and age. Regarding differences between sexes, females did not differ significantly from males in Morning Affect, but scored significantly lower on Eveningness and higher on Distinctness; this last result has been consistent across validation studies of the MESSi. With respect to age differences, the oldest group scored lower on Eveningness and Distinctness in comparison with the other two age-groups; the intermediate group (age: 22–31) scored lower on Morning Affect when compared to both the younger and older age groups. Additionally, both Eveningness and Distinctness were negatively correlated with age. This latter relation has been consistently reported in other validation studies. Our results reinforce the idea that the MESSi assesses three different components of chronotype in a reliable manner and that this instrument can be used to explore sex and age differences.

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Cross-cultural validity of Morningness-Eveningness Stability Scale improved (MESSi) in Iran, Spain and Germany

Cited by 38 publications

References 32 publications

Changes in sleep schedule and chronotype due to COVID-19 restrictions and home office

Changes in sleep schedule and chronotype due to COVID-19 restrictions and home office

Reproductive Success, Relationship Orientation, and Sexual Behavior in Heterosexuals: Relationship With Chronotype, Sleep, and Sex

Factorial Structure of the Morningness-Eveningness-Stability-Scale (MESSi) and Sex and Age Invariance

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