Validation of the Italian Version of the Morningness-Eveningness Questionnaire for Adolescents by A. Lancry and Th. Arbault.
This study aimed to validate the Italian version of the Morningness-Eveningness questionnaire for adolescents by Lancry and Arbault. The Morningness-Eveningness Questionnaire by Lancry and Arbault was translated from French into Italian by using forward-backward translation. Students aged 11-15 years old were enrolled from two schools in Milan (Italia). Validation of the questionnaire was performed in subsequent phases. A pre-test was given to 66 students aged 11-15 years (males 57.4%, females 42.6%) from a convenience sample. Syntactic aspects of the pre-test were improved, and the questionnaire in a revised version was re-administered to 292 students of same age (males 43.8%, females 54.1%) from a convenience sample. Factor analysis was performed on pre-test data, using the principal component method accounting for Morningness-Eveningness. Problematic items possibly uncorrelated with the extracted factor were identified, and reliability produced a Cronbach's Alpha close to 0.7. In the test phase factor analysis was performed using the principal component method. Based on reliability analyses, we excluded a number of items because of their low performance, giving rise to a Cronbach's Alpha of 0.819. Pearson product-moment external correlations between Morningness-Eveningness disposition and temperament, behavioral, and cognitive aspects were evaluated. A factor analysis, Cronbach's alpha and concurrent validity coefficients with disposition, behavior, and cognition, were performed, suggesting potential reliability and validity. The questionnaire is a useful and relevant tool for measuring Morningness-Eveningness disposition in adolescents, which has seldom been investigated with adequate psychometric instruments.
Department of Medicine and Aging, University of Chieti, Pescara, Italy.
Guido Maria
GM
Cavallera
Università Cattolica del S. Cuore, Milan, Italy.
Giuseppe
G
Boari
D000293:Adolescent; D002648:Child; D002940:Circadian Rhythm; D005163:Factor Analysis, Statistical; D005221:Fatigue; D005260:Female; D006801:Humans; D007558:Italy; D007802:Language; D008297:Male; D015233:Models, Statistical; D011594:Psychometrics; D015203:Reproducibility of Results; D012890:Sleep; D011795:Surveys and Questionnaires