My own experience was that I was a mediocre high school student due to my ADHD-Inattentive, but then the SATs were interesting enough to me that I was able to r

My own experience was that I was a mediocre high school student due to my ADHD-Inattentive, but then the SATs were interesting enough to me that I was able to really, really focus for the length of the test. And I did far better on that test that anyone would have suspected I could do based only on my grades, and it was, in fact, predictive of my college performance. In college, I was able to figure out tricks to manage my ADHD.