DD did the WISC IV at 8 years 0 months and her processing speed score was 94, with her GAI at 150, so that was a large gap. She was re-tested for just processing speed 13 months later and it had jumped 21 points. Still a large gap, but not as alarming. It probably still can change a lot when kids are tested so young. I wouldn't worry about the processing speed unless you see symptoms of slow processing speed, like poor fluency or slowness with classroom work. DD has been in piano lessons for close to a year and I think that might have helped boost her processing speed, since it's probably unusual to jump 21 points.
