Not infrequently, I get calls from people wanting an ADHD evaluation. These tests are targeted to a single diagnosis or are not particularly helpful.

Mental health practitioners sometimes specialize. They wil declare they are experts on autism, or eating disorders, or obsessive-compulsive disorder. I don't really think that is a great idea, though.

Psychology over the decades

I have given multiple psychological evaluations for Department of Defense Consolidated Adjudications Facility in reference to security clearances.