I don't know that I'd agree that it is impossible, but I would consider the possibility that your other child is also gifted and due to personality or other things is not as outwardly obvious about it. I do believe that there is pretty strong evidence for heritability of intelligence, but that doesn't mean that everyone in the family MUST be gifted, just that the odds are greater that others will be if one is.
My one who is less obvious about her giftedness is also 2e, so that's another possibility but I wouldn't jump to that conclusion unless other things point in that direction.
In re to the LM showing PGness that is hidden on more modern tests, I'm still not convinced, honestly. The earlier article seemed to indicate that it was creating scores not simply revealing them. I'd like to see it renormed with a modern group of kids including average kids to be convinced, but I know that isn't going to happen. It isn't relevant for your kiddo, though, anyway since he didn't test MG on the WPPSI.
eta: in re to the article I mentioned, that was from the other recent thread on LM vs extended norms.
Last edited by Cricket2; 07/06/12 06:41 AM.
