Hi Callapidder,
I am wondering the same as Dottie - does he have a 504 plan? If so, what is the "disability"? Does he get extra time? Is he able to self advocate - ie directly ask for the accommodations when needed? Does he have a copy to show his teachers?
If he does not have one yet, then my experience is that you will need more than a WISC to demonstrate a need. Most nueropsychological evaluations test in areas of executive functioning, memory, even fine motor skills. If he tests as having challenges in these areas, along with the ADHD diagnosis, you can use the evaluation as evidence that he needs more time. Additionally, if he has a track record of running out of time on tests, you can use this to demonstrate a need for accommodations through a 504. As Dottie says, if the achievement scores are close, it may be difficult to demonstrate a LD such as reading disability.
You are wise to address this issue now - looking ahead to SAT's, the College Board is more likely to approve accommodations if he has had them in place for awhile. They are skeptical of 504's that begin Junior year!
