During the recent decades, attention deficit hyperactivity disorder (ADHD) became one of the most diagnosed childhood psychiatric disorders in many developed countries around the world.

A phenomenon that raises a lot of doubts. Research conducted at Queens College (CUNY) by Sarah O’Neill of The City College of New York shows that observations by clinicians are helpful to support or invalid parents and teachers ADHD evaluations of school aged and preschool children as well.

Even if parents’ ascertainment seems to be crucial, several sources of judgement are not superfluous to take any sound decision about a so subjective, complex, and important matter.