The literature delineates a number of predictors, categorical and quantifiable, linked to early drinking initiation. Such predictors include: male sex (Disney, Elkins, McGue, & Iacono, 1999; B. F. Grant, 1998); childhood psychopathology (Clark, Parker, & Lynch, 1999; Kuperman et al., 2005); poor family supervision and inconsistent/harsh discipline (Griffin, Botvin, Epstein, Doyle, & Diaz, 2000; Kuperman et al., 2001); parental separation (J. D. Grant et al., 2015; Waldron et al., 2014); positive peer attitudes toward drinking (Bekman, Cummins, & Brown, 2010; Capaldi, Stoolmiller, Kim, & Yoerger, 2009; Griffin et al., 2000; McCuller, Sussman, Dent, & Teran, 2001; Trucco, Colder, Bowker, & Wieczorek, 2011); peer use of alcohol or other substances (Bekman et al., 2010; Capaldi et al., 2009; Griffin et al., 2000; Trucco et al., 2011); parental alcohol dependence (AD) or antisocial personality disorder (Assanangkornchai, Geater, Saunders, & McNeil, 2002; Kuperman, Schlosser, Lidral, & Reich, 1999; Legrand, McGue, & Iacono, 1999); relationships with antisocial peers (Zucker, Donovan, Masten, Mattson, & Moss, 2008); and prior smoking (Chen et al., 2002). From this existing list of predictors, Kuperman et al. (2005) identified 63
