“…Vieraitis, Britto, and Morris (2015) provided a comprehensive review of the existing literature, heavily dominated by studies conducted with U.S. data, so I will only present a summary of their findings and add information about a few other studies that were not included in their review. Vieraitis et al (2015) found seven studies supporting the amelioration hypothesis (Bailey & Peterson, 1995;Davies, 1996;Dugan, Nagin, & Rosenfeld, 1999;Haynie & Armstrong, 2006;Stout, 1992;Titterington, 2006), and their own 2015 analysis using multilevel modeling to examining change over time in the United States provided some support for this hypothesis as well, for a total of eight studies. In addition, they identified 10 studies supporting the backlash hypothesis (Avakame, 1999;Davies, 1996;DeWees & Parker, 2003;Dugan et al, 1999;Gartner et al, 1990;Gauthier & Bankston, 1997;Stout, 1992;Vieraitis & Williams, 2002;Whaley, Messner, & Veysey, 2013).…”