This is really interesting. And I just read a relevant article on this earlier in the week that was posted on some other GT listserv ... it speaks to the unreliability of using IQ style tests on preschoolers.

http://nymag.com/news/features/63427/#ixzz0eGNbT3XW

This is a really hard issue. I know some kids that looked very over the top GT at 4, that are looking MG as 3rd and 4th graders. Many of these kids attended very acadmic preschools. One child to the point, that her parents pulled her out of a GT magnet school. I know other kids that didn't stand out at all as preschoolers that came on strong after the age of 5 and 6 (including my own kid). I know adults that no one would have picked out as GT that are brilliant.

I think regardless, if you have a high achieving child, you need to advocate for that need. Kids need to be stimulated and engaged to reach their full potentials.