hello
I rquested to get the ADHD-200 database and a link was sent to me but there is no sufficient information about patient's clinical demographic such as age, IQ, and ADHD index measurements. To do my research at the highest level of quality, I need these information. It would be helpful if you could guide us to access this information.

You should look for the Phenotypic data, there's the full information, even the ADHD scale was used for the diagnosis.