This is an extremely helpful article, which points out the need for differential diagnosis. This is what we do at DeMarle INC thorough screening for the multiple factors that impact a child’s or adult’s performance and then in-depth testing.
“The kid who is inattentive could be inattentive because he has ADHD, or he could be inattentive because he is worried about his grandmother who’s sick in the hospital, or because he’s being bullied on the playground and the next period is recess.”