Morningness–Eveningness Questionnaire: Reliability and factorial structure of the full and reduced versions in Spanish adolescents
Loading...
Official URL
Full text at PDC
Publication date
2025
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor and Francis
Citations
Exportar
Citation
Manjón-Caballero, J.L. & Díaz-Morales, J.F. (2025). Morningness–Eveningness Questionnaire: Reliability and factorial structure of the full and reduced versions in Spanish adolescents, Chronobiology International, DOI: 10.1080/07420528.2025.2509634
Abstract
This study analyzed the suitability of the Morningness–Eveningness Questionnaire (MEQ) for Spanish adolescents, focusing on reliability, structure, and age/sex invariance. 2,268 adolescents (49.1% girls, aged 12–17) participated. Four MEQ items were unsuitable, leading to a 15-item version (MEQ-15) with good reliability and fit to a bifactor model: general morningness–eveningness factor and awakening time, sleep time, and time of greatest efficiency factors. The reduced MEQ (rMEQ) also fit a one-factor model. Sex and age invariance were tenable for the general factor of MEQ-15 and rMEQ. Morningness declines during adolescence, with boys showing more morningness than girls. Both versions show good psychometric properties.