In spite of claims on the website that the assessment will tell you "just how smart" your child is, I see over and over again on the site that the assessment is intended to be a screening and DOES NOT take the place of formal, standardized IQ testing. But if all it does is go through her milestone list then it would be much cheaper to get the book from the library and read it!
FWIW, the testing she did with our son was helpful precisely because he is NOT globally gifted. She pinpointed his specific strengths and helped us to realize just where he was in terms of math ability. But, as I said, this was not based on just the milestones. In fact, his milestone achievement was a bit misleading.
I'd like to see her publish her research on the correlation data and the standardization of the assessment. I don't see that information anywhere on the site.
