Attention deficit/hyperactivity disorder (ADHD) is a chronic, debilitating disorder which may impact upon many aspects of an individual’s life, including academic difficulties, social skills problems, and strained parent-child relationships. Whereas it was previously thought that children eventually outgrow ADHD, recent studies suggest that 30–60% of affected individuals continue to show significant symptoms of the disorder into adulthood. Children with the disorder are at greater risk for longer term negative outcomes, such as lower educational and employment attainment. A vital consideration in the effective treatment of ADHD is how the disorder affects the daily lives of children, young people, and their families. Indeed, it is not sufficient to merely consider ADHD symptoms during school hours—a thorough examination of the disorder should take into account the functioning and well being of the entire family.