Preliminary findings for the validity of the Morningness–Eveningness-Stability Scale improved (MESSi): Correlations with activity levels and personality. (2nd January 2019)

• Record Type: Journal Article
• Authors: Faßl, Corina; Quante, Mirja; Mariani, Sara; Randler, Christoph
• Is Part Of: Chronobiology international. Volume 36:Number 1(2019)
• Page Start: 135
• Page End: 142
• Publication Date: 2019-01-02
• Subjects: Chronotype -- MESSi -- sleep patterns -- activity level -- personality; Chronobiology -- Periodicals; Biological rhythms -- Periodicals; Circadian rhythms -- Periodicals; 571.77
• DOI: 10.1080/07420528.2018.1519570
• Languages: English
• ISSNs: 0742-0528

Abstract

ABSTRACT: Aim of the present study is an additional validation of the Morningness–Eveningness-Stability Scale improved (MESSi). We screened a total of 97 German students using the reduced Morningness–Eveningness Questionnaire (rMEQ) to identify a subsample ( N = 42) of definite morning and evening types (31% males, mean age: 24.8 ± 5.8 years). The participants provided information about their sleep–wake rhythm (diary), personality traits (questionnaire) and experienced actigraphic monitoring. Correlations of the MESSi components "Morning affect subscale" (MA) ( r = 0.91, p < 0.01) and "Eveningness subscale" ( r = −0.87, p < 0.01) with the rMEQ showed good convergent validity. MA was also significantly negatively correlated with the acrophase and the midpoint of sleep as measured by actigraphy.