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Psychometric properties of the French version of the Composite Scale of Morningness in adults

Published online by Cambridge University Press:  16 April 2020

H. Caci ,
L. Nadalet ,
P. Staccini ,
M. Myquel  and
P. Boyer
H. Caci
Affiliation:
Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Fondation Lenval, 57, avenue de la Californie, 06200Nice
L. Nadalet
Affiliation:
Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Fondation Lenval, 57, avenue de la Californie, 06200Nice
P. Staccini
Affiliation:
Service d'Information Médicale, Hôpital Saint-Roch, Centre Hospitalier Universitaire de Nice, 5, rue Pierre-Devoluy, 06000Nice
M. Myquel
Affiliation:
Service Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Fondation Lenval, 57, avenue de la Californie, 06200Nice
P. Boyer
Affiliation:
CNRS UMR 7593, Hôpital de la Salpêtrière, Pavillon de Clérambault, 47, boulevard de l'Hôpital, 75013Paris, France
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Summary

The objective of this study was to provide a reliable instrument to measure morningness for upcoming studies in French samples, using the Composite Scale of Morningness (CSM), which has been translated into French. Nursing students (n = 356) completed the questionnaire between February and March 1997. The total score obtained was independent of age and gender, and normally distributed. The reliability was high (Cronbach's α = 0.85), and factorial analysis confirmed the unidimensionality of the scale. Evening-type subjects are thought to score under 31, and morning-type subjects are thought to score above 44. As an external validation, morningness was associated, on weekdays and weekends, with early rising times and bedtimes and early peak times of physical and mental performance. In conclusion, we found that the English and the French versions of the Composite Scale of Morningness gave identical results. The scale is reliable and can be used for French-speaking adult samples. Nevertheless, normative data and other external validity criteria are needed.

Keywords

chronobiologychronotypecircadian rhythmsmorningness–eveningnessquestionnairetranscultural validation
Type
Original article
Information
European Psychiatry , Volume 14 , Issue 5 , September 1999 , pp. 284 - 290
Copyright
Copyright © 1999 Éditions scientifiques et médicales Elsevier SAS.

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