The influence of chronotype on the academic achievement of children and adolescents – evidence from Russian Karelia

Time to learn: How chronotype impacts education

“…The influence of chronotype on school performance has been extensively studied during the past 20 years. Although different chronotype questionnaires have been used, consistent findings about late (evening) types obtaining lower school achievements have been reported (Arbabi, Vollmer, Dörfler, & Randler, 2015;Borisenkov, Perminova, & Kosova, 2010;Díaz-Morales & Escribano, 2013;Giannotti, Cortesi, Sebastiani, & Ottaviano, 2002;Kolomeichuk, Randler, Shabalina, Fradkova, & Borisenkov, 2016;Preckel et al, 2013;Rahafar, Maghsudloo, Farhangnia, Vollmer, & Randler, 2016;Randler & Frech, 2006Roeser, Schlarb, & Kübler, 2013;Short, Gradisar, Lack, & Wright, 2013;van der Vinne et al, 2015;Vollmer, Pötsch, & Randler, 2013;Warner, Murray, & Meyer, 2008). However, the mechanism(s) behind this phenomenon are still unclear.…”

“…Studies that have assessed chronotype using other questionnaires, such as the MCTQ and the CSM (Smith et al, 1989), found the same chronotype effect on grades, with late chronotypes obtaining lower grades compared to early chronotypes (Borisenkov et al, 2010;Kolomeichuk et al, 2016;van der Vinne et al, 2015;Vollmer et al, 2013).…”

Social jetlag in health and behavioral research: a systematic review

“…Additionally, some studies calculated SJL using a correction of MSF for sleep debt. 22,38 This correction is typically used to estimate chronotype, but is not necessary (and not recommended) for measurement of SJL.…”

“…Although sleep disturbances are known to affect health and behavior, 6 we cannot presume a direct causal relationship between such outcomes and SJL, which appears mostly as a variable that characterizes the study samples. Thus, we chose to exclude studies that did not explicitly assess illness Levandovski et al 2011 29 Roenneberg et al 2012 21 Johnsen et al 2013 22 Kantermann et al 2013 27 Schimitt et al 2013 35 Haraszti et al 2014 40 Kantermann et al 2014 25 Miller et al 2015 44 Rutters et al 2014 28 Borisenkov et al 2015 32 Parsons et al 2015 35 Tavernier et al 2015 42 Wong et al 2015 26 Choi et al 2016 45 Kolomeichuk et al 2016 38 Polugrudov et al 2016 24 Sheaves et al 2016 30 Silva et al 2016 46 Yong states or behavioral outcomes. Furthermore, it is very likely that sleep deficit correlates with SJL.…”

“…Yet, the assessment through open questions and inadequate calculation of SJL by subtracting weekday bedtime from weekend bedtime make these results questionable. Kolomeichuk et al 38 reported that academic achievement of schoolchildren and college students from subarctic locations did not differ according to SJL. However, studies with midlatitude samples showed a link of SJL with lower cognitive performance and lower Grade Point Average in high school students 39 and poor grades during lecture term (with fixed timetables) in undergraduate students.…”