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Title: Morningness–eveningness preferences in Portuguese adolescents: Adaptation and psychometric validity of the H&O questionnaire
Authors: Rodrigues, Pedro F. S.
Pandeirada, Josefa N. S.
Marinho, Patrícia I.
Bem-haja, Pedro
Silva, Carlos F.
Ribeiro, Lígia
Fernandes, Natália Lisandra
Keywords: Chronotype
Psychometric validity
Issue Date: Jan-2016
Publisher: Elsevier
Citation: Rodrigues, P. F. S., Pandeirada, J. N. S., Marinho, P. I., Bem-Haja, P., Silva, C. F., Ribeiro, L., & Fernandes, N. L. (2016). Morningness–eveningness preferences in Portuguese adolescents: Adaptation and psychometric validity of the H&O questionnaire. Personality and Individual Differences, 88, 62-65. Repositório Institucional UPT.
Abstract: Throughout development individuals vary in their circadian preferences. One of the most notable changes occurs during adolescence when individuals tend to become progressively more evening-oriented. This is a critical age period to be studied given that eveningness preferences seem to relate with physical, psychological and social problems, whereas the most morning-oriented individuals tend to be protected against these problems. The aim of this study was to adapt and present the psychometric validity of the Morningness–Eveningness Questionnaire (Horne & Östberg, 1976) to Portuguese adolescents (12–14 years old). To this end, 300 adolescents responded to the questionnaire which was initially translated, re-translated, and then subject to a think-aloud procedure. Overall, the psychometric measures were positive. We found no significant effect of sex on the circadian preferences and a tendency for increased eveningness as age progresses, especially in males. We discuss our results in light of the existing literature.
ISSN: 0191-8869 (Print)
Appears in Collections:INPP - Artigos em Revistas Internacionais / Papers in International Journals

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