I didn't get the impression that her child was tested at the GDC, just that they were the source of the info re sibling IQ spread.

FWIW, they did test our older dd and we were generally happy with that, just not with the consult re our younger dd a few years later.

Would you mind PMing me the name/contact info of the Denver psych who is much less expensive than the GDC, though, in case we need or want to do any further testing in the future? Thanks!

Study Strategies for Accelerated Learners