Problematic Internet use (PIU) creates psychological, social, school and/or work difficulties in a person's life. This study examined the unique roles of four dimensions of temperament (effortful control, sensation seeking, anger/frustration, and shyness) on adolescent PIU, as well as the mediating role of deviant peer affiliation (DPA) on these pathways. Participants were 2758 Chinese adolescents (46% male; mean age = 13.53 years, SD = 1.06) selected by stratified and random cluster sampling from 10 middle schools in southern China. After cova...
