“…Some studies have suggested that teens who terminate prematurely from longitudinal studies differ from those who continue, on both gender (Li, Stanton, and Feigelman 2000) and age (Wade, Treat, and Stuart 1998). Others have found that youth who are lost are exposed to greater levels of individual, family and community risk Journal of Youth Studies 629 (Chassin et al 1990;Li, Stanton, and Feigelman 2000;Richardson et al 2002;Sagatun et al 2008;Thornberry, Bjerregaard, and Miles 1993;Wade, Treat, and Stuart 1998;Weisman and Gottfredson 2001). On the other hand, there is evidence to suggest there are no significant differences between youth retained in studies and those lost (Leadbeater and Linares 1992;Malmberg et al 2012;Sagatun et al 2008;Selmer et al 2003).…”