Objectives: To investigate the psychosocial well-being of adolescents with and without symptoms of attention deficit hyperactive disorder (ADHD).
Study Design: A cross-sectional study.
Methods: Adolescents who were 15 and 16 years old with (n = 487) and without (n = 5988) ADHD symptoms were drawn from the Northern Finland Birth Cohort 1986 (n = 9432).