“…Research has suggested that marijuana use in adolescence can have negative long-term effects on school completion (Fergusson, Horwood, & Beautrais, 2003; Homel, Thompson, & Leadbeater, 2014; McCaffrey, Liccardo Pacula, Han, & Ellickson, 2010; Ryan, 2010; Silins et al, 2014; Thompson, Leadbeater, Ames, & Merrin, 2018; Van Ours & Williams, 2009). For example, studies of Canadian, Australian, and New Zealander youth have found that marijuana use in youth and young adulthood is associated with lower likelihood of secondary and postsecondary school completion, and enrollment in postsecondary education (Fergusson et al, 2003; Homel et al, 2014; Silins et al, 2014; Thompson et al, 2018; Van Ours & Williams, 2009).…”