Why do some kids get misdiagnosed with ADHD? Birth month might be a clue

“Some of the inattentive or distracting behaviors of ADHD could be aligned with typical behaviors of younger children,” said Dr. David Anderson, senior director of the ADHD and Behavior Disorders Center and director of Programs at the Child Mind Institute, who was not involved in the study. “What the study is telling us is more of a verification.”