Spanish Adaptation of the Morningness-Eveningness-Stability-Scale improved (MESSi)

Díaz‐Morales, Juan Francisco; Randler, Christoph

doi:10.1017/sjp.2017.21

Cited by 27 publications

(10 citation statements)

References 34 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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“…Specifically, Morning Affect correlated positively and Eveningness correlated negatively with the CSM (Randler et al, 2016a) and with the rMEQ (Díaz-Morales and Randler, 2017; Faßl et al, 2018). Regarding Distinctness, the correlation between its scores and the CSM and the rMEQ was negative but lower than with the other two subscales (Randler et al, 2016a; Díaz-Morales and Randler, 2017). Moreover, in the study by Faßl et al (2018), no correlations were found between Distinctness and the other subscales.…”

Section: Introductionmentioning

confidence: 96%

“…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%

“…Morningness usually increases again, particularly after the age of 20/21 years, and tends to stabilize until individuals reach around the age of 30 (Roenneberg et al, 2004; Adan et al, 2012; Randler et al, 2016b). Some of the studies that have used the MESSi have reported positive relations between Morning Affect and age and negative relations between Distinctness and age (e.g., Díaz-Morales and Randler, 2017; Rodrigues et al, 2018). Regarding the relation between Eveningness and age, the results have been more irregular, with some reporting negative relations (e.g., Díaz-Morales and Randler, 2017; and some countries from the Rahafar et al, 2017 study) and others non-significant relations (Rodrigues et al, 2018).…”

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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Impact of pandemic lockdown on learning behaviour and sleep quality in German students

2022

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Background This study addresses the effects of the coronavirus disease 19 (COVID-19) restriction measures on sleep and bedtime habits of N = 637 German university students. Methods The questionnaire was distributed online during two different time periods in 2020 (February 27–March 21) and in 2021 (February 27–March 27). The first data collection phase was immediately before the first strict lockdown to contain the COVID-19 pandemic in Germany, and the second data collection phase was during the second lockdown. The survey was composed of validated questionnaires and additional questions regarding the changes in sleep/bedtimes and the status of lectures during the lockdown phase. Results The average Pediatric Daytime Sleepiness Scale (PDSS) score in the sample decreased during the lockdown phase, corresponding to the fact that students were less burdened with daytime sleepiness. Moreover, the sample had earlier rise and earlier bedtimes on free days during the lockdown period. Furthermore, the increase in flexible learning times brought about by the pandemic negatively impacted the students’ lifestyle and increased irregularities in sleeping habits. Conclusion Significant changes in sleeping patterns seem to be attributable to the pandemic lockdown as found in this self-reported student survey. While daytime sleepiness decreased and earlier overall bedtimes were noted, the impact on the irregularity of sleeping and learning patterns seems to be the most notable finding, as this affects overall quality of life and learning performance. Further studies are needed to validate these findings.

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Spanish Adaptation of the Morningness-Eveningness-Stability-Scale improved (MESSi)

Cited by 27 publications

References 34 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

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

Impact of pandemic lockdown on learning behaviour and sleep quality in German students

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