Ok, I looked it up. It looks super easy like anyone could do it, but someone who is not focused would probably have troubles with it if they have to do it more more than a minute.

I'm guessing anyone with ADHD would tend to do poorly on both of the processing speed subtests (coding and symbol search).

What doesn't make sense to me is that everyone says people with ADHD have normal intelligence. So why are these subtests on an IQ test then?