Is anybody here familiar with this thing?

I'm talking to a psychiatrist to get assessed for ADHD, but in order to start treatment, if necessary, I'll first have to do this neuropsychological assessment called the WEIS test. It's expensive as shit, more than 2k, but seems to be the only way for me to get any kind of treatment. I can either pay that amount or wait 8-10 months to get it through my health insurance.

I did some digging and apparently it's this assessment of intelligence that can only be applied by qualified professionals. It frankly sounds like I'm about to get my brainpan measured. Have any of you taken this exam? Is it as stupid as it sounds? Has it helped you receive and/or validate a diagnosis?

Honestly it fucking sucks to me, having to jump through all these hoops just to have somebody listen to me and say "you have/don't have ADHD".