The NICHQ Vanderbilt Assessment Scales are standardized tools used by healthcare professionals to evaluate symptoms of ADHD (Attention-Deficit/Hyperactivity Disorder) and other behavioral issues in children and adolescents. These scales help assess the frequency and severity of various symptoms by gathering input from parents, teachers, and caregivers. The NICHQ Vanderbilt Scales are crucial in forming a comprehensive view of a child's behavior across different settings, aiding in accurate diagnosis and the development of effective treatment plans.