Diagnosing ADHD sometimes presents a challenge, because there are many disorders that mimic the signs and symptoms of ADHD. Diagnosing ADHD must be done by a clinical professional. But what you will note is that ADHD requires six different inattention symptoms or six different impulsivity hyperactivity symptoms that occur over a course of six months.
These symptoms and behaviors must manifest before the child is 7 years of age. In older children, we recognize that these symptoms also have to occur in more than one setting. So it's important to talk with parents, teachers, coaches, tutors and individuals that interact with the child to identify these settings. Also helpful in identifying ADHD, are various questionnaires that are completed by the child themselves in addition to very specific psychological or neuropsychological evaluations. These are just some of the ways that ADHD in children is diagnosed.