Related Experiment Video
Updated: Feb 7, 2026

External Cephalic Version: Is it an Effective and Safe Procedure?
Published on: June 6, 2020
Initial psychometric characterization for the Portuguese version of the Morningness-Eveningness-Stability-Scale
Pedro F S Rodrigues1,2, Paula Vagos3,4, Josefa N S Pandeirada1
1a CINTESIS.UA, Department of Education and Psychology , University of Aveiro , Portugal.
Abstract:
This 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.
More Related Videos
Related Concept Videos
Initiation of Translation
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
Initiation of Translation
pH Scale
Nuclear Stability
To hold positively charged protons together...
RNA Stability
Transcription Initiation
The promoters and enhancers and their accessory proteins allow tight regulation of...

