“…There are findings in the literature indicating that programs that are based on the PYD approach have yielded positive results. The positive effects have been seen on protecting the sexual and reproductive health of young people (Balsano, Phelps, Theokas, Lerner and Lerner, 2009), decreasing problematic behaviors and increasing academic success (Benson and Saito, 2000;Bernat and Resnick, 2006;Lerner, 2005), decreasing risky behaviors (Campbell, Trzesniewski, Nathaniel, Enfield and Erbstein, 2013), increasing selfconfidence, morale and competence (Catalano, Berglund, Ryan, Lonczak and Hawkins, 2004;Cognetta and Sprinthall, 1978), self-regulation and self-protection (Gavin, Catalano, David-Ferdon, Gloppen and Markham, 2010;Lerner, Albert, Anderson and Dowling, 2006;Lerner, Taylor and Von Eye, 2002), commitment to school, constituting social capital (Gestsdottir, Bowers, Von Eye, Napolitano and Lerner, 2010;Mahatmya, 2011), making healthy decisions (Lerner and Lerner, 2010), cognitive development (Lerner, Lerner and Benson, 2011), and social skills (Maas, Wilken, Jordan, Cullen and Place, 2006;Newmann and Rutter, 1983;Olson and Goddard, 2012;Peterson and Seligman, 2004;Roth, Brooks-Gunn, Murray and Foster, 1998;Roth and Brooks-Gunn, 2003;Sun and Shek, 2012;Youngblade et al, 2007).…”