My ds12 has dysgraphia and similar splits in VIQ/PRI vs PSI and WM. It will help to make sense of the WJ-III achievement tests if you look at them grouped by response type (oral vs handwritten) and also grouped by timed vs untamed. Our ds' scores seem to be very scattered upon first glance, but when you group them this way it's very clear which tests are timed and require handwriting - so his low scores are due to his dysgraphia and the tests don't accurately reflect his knowledge.
Looking online, it seems that DS's lowest WJ scores are those that were timed which was math fluency and writing fluency. So what does that mean?
