ADHD has no known cause, its diagnosis is subjective, and long-term effects of treatment are still unclear. More research will help us improve diagnosis process and treatment.
While not every active movement should be labeled as ADHD, diagnosing this very real disorder is crucial to meet the needs of the students whom are impacted.
ADHD may be a true disorder, however, it should not be considered a neurodevelopmental disorder.
There is plenty of data to support the validity of ADHD as a diagnosis. It is not an all-or-nothing concept, and a proper diagnosis requires a variety of professionals and essential steps.
Due to the nature and behaviors associated with ADHD it is almost impossible to objectively provide a diagnosis.
I do believe that ADHD is a genuine clinical diagnosis even if there is not a medical test for it. I also believe that because of the subjective nature of diagnosing this disorder over-diagnosis is an issue. I agree that further research would be beneficial.
ADHD is considered to be a neurodevelopmental disorder and is not just a current fad.