Adaptation of the morningness eveningness scale for children into Turkish

Measures of circadian preference in childhood and adolescence: A review

“…Regarding the reliability of the measures, the percentage of studies reporting at least acceptable levels of internal consistency was high and similar between the three questionnaires (i.e., 75% of studies for the MEQ-CA and 76% for both the MESC and CSM). Evidence for test-retest reliability assessed through correlation analyses is scant, since only 3 studies [4,38,46] on 50 included in the review reported such value; it was at least acceptable for the MESC [38,46], not acceptable for the MEQ-CA [4] and not available for the CSM. The data on test-retest reliability assessed through correlation analyses should be cautiously interpreted because the time interval between administrations of the questionnaires for the MESC (1 month) was shorter compared to that for the MEQ-CA (6 months) and thus they are hardly comparable.…”

“…As shown in Table 1 and Supplementary Table 2, the psychometric properties of the MESC have been reported in studies based on American, Australian, Croatian, Dutch, Hong Kong-Chinese, Israeli, Italian, Spanish, Taiwanese and Turkish samples. Of the 25 studies that reported Cronbach's alpha values, five presented scores of ≥ 0.80 [23,24,27,49,83], fourteen studies reported values between 0.70 and 0.79 [3,17,18,20,21,25,26,31,38,42,43,48,51,78], while six showed values < 0.70 [8,16,28,29,40,46].…”

“…Diaz-Morales et al [24] validated the Spanish version of the MESC and reported that evening types had a delayed sleep-wake cycle, were more alert during evening and night hours and exhibited lower mood levels during morning hours. Finally, Kim et al [37] concurrently administered the MESC and the MEQ to 109 American adolescents and obtained a significant correlation between these scores ( r = 0.83; P < 0.05), while Önder and Besoluk [46] found a correlation of 0.64 ( P < 0.001) between the MESC and the CSM in a sub-sample of 70 Turkish adolescents with a time interval of three weeks between the administration of questionnaires.…”

“…Two studies reported test-retest reliability assessed through correlation analyses (Table 1 and Supplementary Table 2). Based on 100 Turkish adolescents, Önder and Besoluk [46] reported a positive correlation ( r = 0.78; P < 0.001) between the MESC scores obtained over a one-month interval. Using the same time interval, Koscec et al [38] reported a positive correlation ( r = 0.83; P value not reported) in a sample of 807 Croatian adolescents.…”

How Young “Early Birds” Prefer Preservation, Appreciation and Utilization of Nature

“…The MESC, originating in Carskadon et al [43], was adapted from the Composite Scale of Morningness [44] to children and adolescents and was recommended by Tonetti et al [45] as a scale for assessing morningness-eveningness in children and adolescents. The MESC is a unidimensional scale [43,45], has been widely used since 1992 and is available in Brazilian, Italian, Croatian, Turkish, Spanish, American and Australian English [45][46][47][48][49]. It was applied in large samples (N = 345-1393) and in a broad age range (12-20 years), with an internal consistency ranging from 0.68-0.77 and a test-retest reliability between 0.53-0.59 (see Tonetti et al [45] for details).…”