- Subject meets Diagnostic and Statistical Manual of Mental Disorders Fourth Edition; Text Revision (DSM-IV-TR) criteria for a primary diagnosis of ADHD (inattentive, hyperactive, or combined subtype) established by a comprehensive psychiatric evaluation that reviews DSM-IV-TR criteria prior to Screening. Diagnosis is confirmed at Screening using Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID).