Morningness–Eveningness Questionnaire: Reliability and factorial structure of the full and reduced versions in Spanish adolescents

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)...

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Detalles Bibliográficos
Autores: Manjón Caballero, José Luis, Díaz Morales, Juan Francisco
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/121016
Acceso en línea:https://hdl.handle.net/20.500.14352/121016
Access Level:acceso abierto
Palabra clave:612.821
Morningness‒Eveningness Questionnaire
Reduced MEQ
Adolescents
Factorial structure
Sex and age factorial invariance
Psicología (Psicología)
61 Psicología
Descripción
Sumario: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.