Influence of Peer Group Conformity on Moral Identity and Penchant for Watching Violent Television Shows on Aggressive Behavior in University Christian Indonesia

This research aims to prove the influence of variable moral identity, peer group conformity, and the avocation of watching violence on television on aggressive behavior. The research population is University Christian Indonesian (UKI). This research uses quantitative research method. The type of statistics that used is parametric, to be descriptive using the mean standard deviation, correlation and reliability. The formulation of hypothesis is (1) there is a negative and significant influence between moral identity on students 'aggressive behavior, (2) there is a significant negative influence between peer group conformity that negatively affects students' aggressive behavior, (3) there is a significant positive influence between avocation of watching violence on television on students' aggressive behavior. This research uses the measuring instrument that was compiled in accordance with Agusto Blasi's theory, then tested, consisting of ten aggressive behaviors (alpha = 0.67), twelve moral identities (alpha = 0.74), peer conformity had a positive impact on four items (alpha = 0.87) and five items for peer group conformity which had a negative impact (alpha = 0.69), as well as an avocation of watching violence on television seven items (alpha = 0.490). Keyword—aggressive behavior; moral identity; peer group conformity