Dan Marino got a 14.
Doesn't mean that much, in fact, I probably would not score that highly on a timed test. The questions are easy, sure. But you have to answer quickly.
I remember a similar test was given to us in high school to determine IQ. My overall grade was good, but a red flag was raised when I had both high and low scores in different areas. There were several parts, one was a reading comprehension part where my score was extremely high. The "answer obvious questions quickly" part I didn't even finish. I would have been better served just putting C down each time. so the guidance counselers wanted to test me for possible autism or some shit, and I politely told them to go fuck themselves.
I know most QBs you want to do well in this, corners as well, because it involves making decisions quickly. But it's not the same thing as an IQ test.