KICCE Policy Brief

CONTENT

Longitudinal Effects of Sleep Duration and Sleep Problems in Early Childhood on Children's School Adaptation and Academic Performance: The Mediating Effect of Executive Function Difficulties

Jisu Han and Yeojin Oh

This study examined whether sleep duration and sleep problems in 5-year-old children impact their school adaptation and academic performance in the second grade of elementary school, which is mediated by executive function in the first grade. For this purpose, a path analysis was conducted on a sample of 888 children using data from the 7th to 9th waves of a Panel Study on Korean Children. The analysis revealed that sleep problems in early childhood led to difficulties in executive functions, which encompassed attention, emotion, and behavior regulation, which, in turn, had long-term negative effects on school adaptation and academic performance in the second grade. These findings suggest the need to pay attention to sleep habits in early childhood and intervene appropriately to prevent sleep problems from becoming chronic, to promote healthy cognitive development, school adaptation, and academic proficiency in children.

Keywords: Sleep Duration, Sleep Problems, Executive Function, Academic Performance, School Adaptation

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