Based on notions posited by problem behavior theory, the primary goal of the current study was to examine the possibility that adolescents who engage in NSSI are not a homogeneous group but are rather divided into 2 subgroups: (a) adolescents who exclusively engage in NSSI, and (b) adolescents who are involved in NSSI alongside other problem…

Intentional self-regulation is a core facet of human functioning, involving people's modulation of their thoughts, attention, emotions, and behaviors to react to environmental demands and to influence their own development. Using data from Grades 8, 9, and 10 of the 4-H Study of Positive Youth Development (PYD), the structure of intentional…