I don't think his symbol search score was much higher than coding, but he probably had some double vision at the time, due to strabismus from his brain injury. Do both of those tests (symbol search and cancellation) involve writing? If so, what happens if someone has no writing ability due to say, an accident and or severe disability.

I'm debating having him take the CogAT in a few months and keeping my fingers crossed. But with DD it was such a disaster that I don't know if I can bring myself to do it, esp. knowing that he is 2e as well (she was really slow or unfocused and left a lot of it blank, but they scored it anyway).