Amy, fwiw, my ds has a split in his VIQ vs PRI on the WISC, and it *flipped* between 2nd and 5th grade - in his case he had a higher VIQ in 2nd grade, but a higher PRI in 5th grade. Our neuropsych told us that as long as the discrepancies are less than 1 SD they don't read too much into it. I can't tell if your ds' split is greater than 1 SD since you've just got percentiles listed. Also, fwiw I agree with the point Dude made about reading - our ds was a really really advanced reader in 2nd grade, but by the time he was in 5th grade he was spending considerably less time reading (he fits the profile of a stealth dyslexic in many ways). Our ds is definitely without a doubt a visual/spatial kid.
Also, just fwiw, our ds is one of those EG kids who scores consistently high on WISC/WJ-III yet was only in the 70th percentile on the CogAT. After I picked myself off the floor at that result and did a little googling, I found there are quite a few high-IQ kids who don't have consistent results on the CogAT.... so I'd recommend not worrying about it too much!
polarbear
