What does the tester think about the difference between the WISC and WIAT scores. My DS had very similar differences and that is what led to his diagnosis of stealth dyslexia. He was even diagnosed with dyscalculia even though he is in the highest math group his school offers (and making 98s, 99s and 100s without difficulty). It just makes you wonder what these 2e children could do if it weren't for that 2nd e.