Psychometric evaluation of the french version of the children’s chronotype questionnaire: sleep habits and academic performance of native and immigrant children in Luxembourg

This paper examined the psychometric properties of the French version of the Children’s Chronotype Questionnaire (CCTQ) attending two elementary schools in Luxembourg (n = 172; ages 4–11 years, M = 8.0, SD = 2.1) of either Portuguese (n = 11), Luxembourgian (n = 147), or other (n = 15) ethnicity. Parents completed the CCTQ, from which we used two chronotype scales (i.e. midsleep point on free days; MSF, multi-item morningness/eveningness; M/E). Results indicated satisfactory internal consistency for M/E scale (α = .70), with high intercorrelation scores (r = .91 between items; r = .87 between... Mehr ...