Problem behaviors are defined as negative/harming/aggressive behaviors that can be consistently demonstrated in various environments such as at school, home, or in the community (Walker, Colvin, & Ramsey, 1995). A wide range of problem behaviors are discussed in the literature under the titles antisocial behaviors, difficult behaviors, unwanted behaviors, aggressive behaviors, and adjustment and behavior disorder. Physical and verbal attacks, over irritability, reacting to friends with hostility, constant objection to the directions of adults, ignoring the warnings of adults, harming public property intentionally, harming and teasing others, and hyperactivity can be stated as examples of antisocial behaviors (Giannopulu, Escolano, Cusin, Citeau, & Dellatolas, 2008; Tremblay, 2000).Academic skills are one of the main areas where children with antisocial behaviors experience severe difficulties. Studies have shown that these children have lower rates of participation in academic activities and lower academic success compared to their peers (Coie & Jacobs, 1993; Hendawi, 2012; Lane, 1999). They are often expelled from school or drop out and encounter the risks of committing crime or becoming addicted to drugs (Tremblay, 2000; Walker et al., 1995). Children with antisocial behaviors also have some problems with social skills, and this has a strong relationship with their academic skills. Studies have revealed that these children have problems with their peers in social interactions; have difficulties in understanding social clues or behaviors of their peers; frequently prefer aggressive problem solving strategies in their relationships; and were often rejected by their peers (Parker & Asher, 1987; Pepler, Craig, & Roberts, 1998; Walker, Ramsey, & Gresham, 2004). Children with antisocial behaviors affect both the house that they live in and the school that they are educated in, and teachers and families usually spend most of their time trying to cope with those behaviors instead of focusing on academic activities (Finn & Pannozzo, 2004).The roots of antisocial behaviors go back to the early years of life (Arseneault et al., 2003; Campbell, 2002; Fox, Dunlap, & Powell, 2002; Wakschlag & Danis, 2004; Waliski & Carslon, 2008). Studies indicate that the behaviors of arguing, disobedience, and not sharing that appear in early childhood turn into fighting, lying, and stealing in the primary school years. These then turn into more serious and complex behaviors that are difficult to overcome such as interpersonal violence, committing crimes, harming the property of others, starting gangs and racketeering during and after puberty (Loeber, 1990; Patterson, DeBaryshe, & Ramsey, 1989; Robins, 1978; Tremblay, Phil, Vitaro, & Dobkin, 1994; Walker & Cheng, 2007; Wicks- Nelson & Israel, 1997). In particular, half of the children who display externalized problem behaviors (such as hitting and swearing) during preschool continue these behaviors during and after their school years (Campbell, 1995). The amelioration of antisocial behaviors that could not be controlled with effective interventions in earlier periods costs more effort, time and money in the long term (Elliot, Prior, Merrigan, & Ballinger, 2002). In addition to this, primary caretakers and the immediate environment (such as teachers and classmates) play a significant role in a child's social and emotional development (Dunlap et al., 2006; Robins, 1978; Walker et al., 2004). Early intervention programs that start at early ages and implemented in various mediums (individual, family, and school) have gradually become important in this context (Elliot et al., 2002; Kazdin, 1987). One such program is the First Step to Success (FSS) Early Intervention Program that was developed by Walker et al. (1997) for preschool and primary school first/second grade students at risk of displaying antisocial behaviors. The program was later applied to nursery school students by Walker et al. …