... A family history of alcohol abuse, specific combinations of gender and ethnicity (e.g., female and non-Caucasian) and social anxiety appear to be hindering factors (Book, Thomas, Dempsey, (2), violent episodes (1), HIV risk behavior (1), unprotected sex occasion (1) Studies comparing individual vs . (2), treatment completion and goal achievement (1) Group treatments for adolescent substance abuse : Battjes et al., 2004;Burleson and Kaminer, 2005;Dennis et al., 2004;French et al., 2008;Liddle et al., 2004Liddle et al., , 2009 (5), delinquency (1), internalized stress (1), reducing risks in family, peers (1), self-efficacy (1) TRAUMA/PTSD Amaro et al., 2007;Bradley and Follingstad, 2003;Chard, 2005;Classen et al., 2011;Cloitre and Koenen, 2001;Creamer et al., 2002;Donovan et al., 2001;Dorrepal et al., 2010;Falsetti et al., 2001;Gatz et al., 2007;Ginzburg et al., 2009;Gorey, Richter, and Snider, 2001;Hébert and Bergeron, 2007;Kibler and Lyons, 2008;Kreidler, 2005;Lau and Kristensen, 2007;Layne et al., 2001;Lundqvist et al., 2009;Lundqvist and Öjehagen, 2001;Lundqvist et al., 2006;Möller and Steel, 2002;Morrison and Treliving, 2002;Mueser et al., 2007;Rieckert and Möller, 2000;Ruzek et al., 2001;Ryan et al., 2005;Saltzman et al., 2001;Schnurr et al., 2003;Sharpe et al., 2001;Sikkema et al., 2004Sikkema et al., , 2007Sikkema et al., , 2008Spiegel et al., 2004;Toussaint et al., 2007;Vaa et al., 2002;Wallis, 2002;Westwood et al., 2010;Zlotnick et (13), PTSD diagnosis (6), self-esteem (6), anger (5), anxiety (5), coping/avoidance (5), guilt (4), assertiveness (3), social function (3), alcohol/drug severity (2), HIV risk behavior (2), grief (2), GPA (2) Randall, & Randall, 2009; LaBrie, Feres, Kenney, & Lac, 2009;McNeese-Smith et al., 2009), while higher motivation (Litt et al., 2003), social reinforcement (Lash, Burden, Monteleone, & Lehmann, 2004), music therapy (Dingle, Gleadhill, & Baker, 2008), PTSD symptom reduction (Hien et al., 2010), and contingency management (Ledgerwood, Alessi, Hanson, Godley, & Petry, 2008) enhance adherence and outcome. ...