K. T. H. LEE ;
D. L. VANDELL
|
2015
Dans Journal of Adolescent Health (Vol.57, n°5, November 2015) Article : Périodique
Dans Journal of Adolescent Health (Vol.57, n°5, November 2015) Article : Périodique
Purpose: High levels of adolescent substance use are linked to lower academic achievement, reduced schooling, and delinquency. We assess four types of out-of-school time (OST) contexts- unsupervised time with peers, sports, organized activities,[...]
Historique