SummaryThe aim of this thesis is the analysis of potential correlations between gelotophobia and aggression in the school context. The study sample consists of teenagers, as research has shown that adults with a high gelotophobia score report that they have been bullied in their childhood by classmates. Four aspects of aggression were defined: victims of open and relational aggression, and perpetrators of open and relational aggression. To measure these aspects, both self and peer nominations were considered. Furthermore, gelotophobia was brought in connection with various aspects of emotional intelligence, to detect possible correlations. To capture the self-description of the various aspects of aggression a questionnaire for detection of open and relational aggression and victimization (Crick & Grotpeter, 1995) will be used. Furthermore a peer nomination within the class association is carried out. To capture Gelotopobia the PhoPhiKat-45 test for the detection of Gelotophobia, Gelotophilia and Katagelasticism (Ruch & Proyer, 2009) was used. The emotional skills of young people were imposed with the TEKJ (Freudenthaler, Neubauer & Becker, 2006), the FEK-K (Freudenthaler & Neubauer, 2005) and the TEIQue (Petrides & Furnham, 2006). The sample included 191 adolescents in the eighth grade, who were tested within their class association on two test dates. The results showed that no clear distinction between perpetrators and victims can be made, most offenders are also victims and vice versa. Gelotophobe adolescents were not more often victims or perpetrators than their non-gelotophobic classmates. As expected, gelotophobic adolescents showed deficits in their intrapersonal emotional abilities, results which correlate again with the frequency of perpetrator and victim of aggression.