The influence of age, work schedule and personality on morningness dimension

The effects of age, work schedule and personality were investigated in 908 subjects by means of a reduced scale of Morningness-Eveningness-Questionnaire which contains questions regarding only the Morningness dimension. The results obtained for the work schedule and age maximized the inter-groups differences and the effects as compared to the original questionnaire. Extraversion correlated negatively with Morningness scores, while Sex and Neuroticism were not significantly related to this dimension.