“…Since then, researchers on drug use and drug policy have elaborated on these ideas. While research on the normalization of a range of substances has been conducted, the available evidence strongly supports cannabis as the most normalized of illicit drugs (Hathaway, 1997a, 2004b; Lee & Kirkpatrick, 2005; Measham, Newcombe, & Parker, 1994; Osborne & Fogel, 2007, 2008; Parker, Alridge, & Measham, 2002; Warner, Room, & Adlaf, 1999; Warner, Weber, & Albanes, 1999). While qualitative research on the normalization of drug use has focused primarily on adolescents, earlier research made similar observations with regard to adult drug users (e.g., Goode, 1970; Plant, 1975; Zimmerman & Weider, 1977) and this research has continued (Dahl & Heggen, 2014; Kronbaek & Frank, 2013; Pearson, 2001; Sandberg, 2012; Shukla, 2005; Williams & Parker, 2001).…”