Jtooit, the more you write about your dd the more she sounds like my dysgraphic ds. Like Cricket2's dd, he also is dyspraxic. His discrepancy between PSI and other parts of the WISC was around 3 standard deviations, but I think that any discrepancy larger than either 1 or 1.5 SDs can be reason for a further look and a possible concern. When your child also has a sibling with dyslexia and the issues you've seen with writing and school personnel not seeing the same child you know... that all adds up to good reasons to have a private neuropsych educational eval.
polarbear