0000000000780552
AUTHOR
Trude Nilsen
Aspects of nutritional deficits and cognitive outcomes – Triangulation across time and subject domains among students and teachers in TIMSS
This article describes associations between breakfast intake and school achievements among Norwegian 9th graders in 2015 and 2019. The study involved a representative sample based on Trends in International Mathematics and Science Study (TIMSS), N = 4499 (2015) and N = 4685 (2019). This trend study using structural equation modelling and triangulation revealed a significant positive association between breakfast intake and school achievements among Norwegian 9th graders. This was found for both mathematics and science achievements, in 2015 and 2019, reported both by the students and their teachers. Mediation analyses showed that being hungry at school explained a third of the decrease in sc…
Associations between sleep deficit and academic achievement - triangulation across time and subject domains among students and teachers in TIMSS in Norway
Abstract Background Sufficient sleep is important to an individual’s health and well-being, but also for school achievement among adolescents. This study investigates the associations between sleepiness, sleep deficits, and school achievements among adolescents. Methods This trend study involved a representative sample of Norwegian adolescents based on the “Trends in International Mathematics and Science Study” (TIMSS), N = 4499 (2015) and N = 4685 (2019) and their teachers. The students were 9th graders from a Norwegian compulsory secondary school. The survey included questions on students’ sleepiness as students reported in 2019 and sleep deficits among students that limited teaching in c…