Initial psychometric characterization for the Portuguese version of the Morningness-Eveningness-Stability-Scale improved (MESSi) |
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| Authors: | Pedro F. S. Rodrigues Paula Vagos Patrícia I. Marinho Christoph Randler Carlos F. Silva |
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| Affiliation: | 1. CINTESIS.UA, Department of Education and Psychology, University of Aveiro, Portugal;2. IBILI, University of Coimbra, Portugal;3. CINEICC, University of Coimbra, Portugal;4. INPP, Oporto Global University, Portugal;5. SASUA, University of Aveiro, Portugal;6. Department of Biology, University of Tuebingen, Germany |
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| Abstract: | ABSTRACTThis work reports the initial psychometric characterization of the Morningness-Eveningness-Stability-Scale improved (MESSi) for Portuguese young-adults (N = 466). A confirmatory factor analysis confirmed a three-factor model (i.e. Morning Affect, Eveningness and Distinctness) in our data, as originally proposed. Furthermore, construct validity evidence in relation to external variables (i.e. morningness/eveningness and satisfaction with life), as well as adequate reliability (i.e. internal consistency and test-retest reliability), were found. Finally, sex-based invariance and between-sex differences were investigated for the three subscales, as were correlations with age. Results point to the suitability of the MESSi for multi-cultural research on relevant and multiple aspects of chronotype. |
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| Keywords: | MESSi distinctness morning affect eveningness psychometric characterization European Portuguese |
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