Now I happen to believe that siblings can and do have wild differences, but I wouldn't assume that's the case here just yet.
Dottie, do you know if there is any research on this one way or another? The folks at the Gifted Development Center assured me that they have never found a family where some kids are gifted and some are not and that, when they've found large differences (10+ pts) that is was where one or more siblings were PG and one or more were MG. They said that they had never found one or more to be MG and one or more to be not gifted.
However, this was the same person at the same location who told me some other things that really irked me and which I was not too sure on, so I'm not taking her word as gospel.
