“…Young (or emerging) adults show a higher prevalence of substance use, heavy drinking, and binge drinking than any other age group (Chen & Kandel, 1995;Grant et al, 2004;White & Jackson, 2004). A key feature of the vulnerability associated with substance use disorders, including alcohol use disorder (Bickel & Marsch, 2001;Finn, Gerst, Lake, & Bogg, 2017;Garavan & Stout, 2005) is the propensity to make risky decisions, especially in emerging adults (Baer, 2002;Bernheim et al, 2012;Jackson, Sher, & Park, 2005). Emerging adulthood is characterized by instability in the social environment (Arnett, 2000) that leads to exploration of novel social bonding possibilities.…”