Classification of Teenager Aggressiveness Using K-Nearest Neighbor Method

Teenage is a period of transition from childhood to adulthood. During this time, teenagers will experience the process of finding self-identity and begin recognizing how and what they are. This process of searching for self-identity is carried out by teenagers in various ways, although in a way that is a risk that it can cause problems in teenagers and impact their environment. Therefore, research is required to categorize teenaged aggression to identify early on those who need extensive intervention from parents or a professional. This classification of teenager aggressiveness will use the K-Nearest Neighbor method, with the data used being teenager data from SMPN 11 Samarinda, East Kalimantan, Indonesia, as many as 101 teenagers, 70 data training, and 31 data testing with 29 symptoms. The study results obtained an accuracy value is 70.96%. It is hoped that with this classification of teenagers’ aggressiveness, parents, teachers, or schools can pay attention to early treatment for students in need.