Four-day school weeks have proliferated across the United States in recent years, reaching over 650 public school districts in 24 states as of 2019, but little is known about the effects of the four-day school week on high school students. This study uses district-level panel data from Oklahoma and a difference-in-differences research design to…

Through the provision of different types of social support, significant nonparental youth--adult relationships can facilitate youth's positive development across adolescence. However, despite the potential benefits of these relationships, there has been little consideration of how the relational process may vary across different adolescent stages.…

The NLSY97 data were used to explore the patterns of developmental trajectories of body weight in adolescence and how they affected the likelihood of college completion in young adulthood among 2,275 youths aged 13 and 14 in Wave 1. A strong weight trajectory gradient was found for rates of college completion. The study further explored the role…