Hi Lori,
My son was tested over two sessions, and his GAI came out to be 160. Each session took about 35-40mins; the second session was shorter. That was last year when he turned 6. We knew he had some sensory processing and gross motor skill issues, but not much else. We were lucky to meet with a tester who was very impressed with his verbal abilities, but felt that his squirelly-ness (we met her originally for an asperger's assessment on the insistence of his OT; that was debunked) would affect his scores. Her basic stance was to see how high his IQ was, while removing as far as possible, other issues that have no bearing on his learning ability or intelligence.
Since then, we found out that he has visual issues (very poor tracking and convergence). His initial assessment for attention is also very poor, and we are looking for more answers in that direction.
I'm very sure that if DS had to do the WISC in one go, he wouldn't have lasted out and his score would have been a lot lower. I totally understand what you mean when you say your son's visual motor integration will affect his test scores, because that would have happened for my son too. On his recent CognitiveMap evaluation, he couldn't get a rating on visual attention because he couldn't get his eyes to scan the answers anymore after 1 hour of testing. This is after a year of vision therapy
.
If it makes sense to test again, do ask the tester to consider his condition. It completely makes sense to break up the testing because his score is very likely to be hindered by issues that have nothing to do with his intelligence.
Good luck!
