Ovidius University Annals, Series Physical Education and Sport / SCIENCE, MOVEMENT AND HEALTH Vol. XVI, ISSUE 2 Supplement, 2016, Romania The journal is indexed in: Ebsco, SPORTDiscus, INDEX COPERNICUS JOURNAL MASTER LIST, DOAJ DIRECTORY OF OPEN ACCES JOURNALS, Caby, Gale Cengace Learning, Cabell’s Directories 335 Science, Movement and Health, Vol. XVI, ISSUE 2 Supplement, 2016 September 2016, 16 (2, Supplement): 335-342 Original article INCREASING BULLYING TENDENCY IN SCHOOLS: A RESEARCH IN THE CONTEXT OF EXTRACURRICULAR SPORTIVE ACTIVITIES ÇELİK O. Burçak 1 , KURTİPEK Serkan 1 , İLHAN E. Levent 1 Abstract * Aim. Aim of this research is to explore influence of extracurricular sportive activities on bully behaviors that is appeared in schools. Methods: Survey research design, one of quantitative research approaches was used in this research. Research group was composed with convenience sampling method, one of purpose full sampling sorts. Participants of research are 163 students (74 male, 89 female) receiving education in public schools and 170 students (84 male, 86 female) receiving education in fee-paying schools. Results: In this research, Bullying Tendencies Scale developed by Dölek (2002), was used as data collection tool. Data swore analyzed with SPSS 22 program. Firstly in analysis, test of normality was done. Comparisons showing normal distribution were analyzed with t-test and ANOVA. Comparisons not showing normal distribute on were analyzed with Mann Whitney U test and Kruskal Wallis test. Conclusions: It was appeared that students participating to extracurricular on-sportive activities in public schools had significantly bullying tendency according to students participating extracurricular sportive activities. Also, students in public schools participating extracurricular activities had significantly more bullying tendency according to students in fee-paying schools. Keywords: bullying, schools, extracurricular sportive activities. Introduction Psychology is a name given to scientific effort that tries to find the main underlying reasons of human behavior (Cüceoğlu, 2010). The most complicated period of the psychology is the adolescence period without doubt. One of the behaviors in this period is the aggression. Aggression is all kinds of behaviors that contain harming others (Solak, 2009). Aggression is inherent both in humans and animals. What makes humans different is that they can bring the aggressive behaviors under control through the education received for years. Particularly in their adolescence period, aggressive behaviors of humans increase. There can be generally groupings among students in adolescence. Sharing and having activities with peers in a group are very important and preferential for adolescents (Çivilidağ, 2013). These groups can influence both positively and sometimes negatively. Members can enjoy mocking and joking with non-members and different ones in a particular way (Gander and Gardiner, 2004). Various bullying behaviors are sometimes seen in the relationships of youth in this developmental period with fellows and opposite sex. These contain negative peer behaviors such as nicknaming, mocking with defects of friends, insulting, displaying indignity, swearing, using physical violence etc. When these kinds of bullying behaviors are realized by teachers and school administrators, they should intervene; the reasons of these behaviors of students have to be researched with school counseling service. Victim students should also be provided assistance from school counseling service (Çivilidağ, 2013). Bullying is a common problem in schools and also one of the biggest problems for students, teachers and school administrators (Orpinas and Horne, 2006). In literature, there are many definitions about bully, but many researchers use the definition of Olweus (1993), which states “A student is being bullied or victimized when he is exposed repeatedly and over time to negative actions on the part of one or more students’’(Sanders and Phye, 2004). School bully is a type of aggression that one or more students annoy continuously and on purpose the students who are weaker and victim can’t protect him/herself. School bully can be appeared physically such as kicking, slapping, pushing, pulling; orally such as teasing, ridiculing, mocking, annoying, unpleasant nicknaming, insulting; and indirectly such as spreading rumors and gossips, causing someone to be alone by excluding or behaviorally such as seizing money or other properties, threatening with seizing, damaging properties (Pişkin, 2002). Violence 1 School of PhysicalEducationandSport, Gazi University, Ankara, 06330, TURKEY E-mail address: okanburcakcelik@hotmail.com Received 15.02.2016 / Accepted 07.03.2016 * the abstract was published in the 16 th I.S.C. "Perspectives in Physical Education and Sport" - Ovidius University of Constanta, May 20-21, 2016, Romania