Hi there, sfb!

Here's a link to an article I found on Hoagies about research from the Gifted Development Center and Linda Silverman. There are comments about siblings IQ scores being within 5-13 points of each other and how 2nd children typically present as differently gifted from their older siblings.

http://www.gifteddevelopment.com/What_is_Gifted/learned.htm

Just relax and enjoy the uniqueness of each child. I have four kids of my own who are all gifted but at different levels and with very different personalities. They each present as unique and yet similar. My youngest is just turning 4 next month. Although she does not do all the things her older brother did at that age she is more advanced in other areas than he was. I'm sure she, too, will turn out to have giftedness evident as she enters school and gets older. On one of the boards I frequent a parent/educator has a saying any time someone asks "...should I test the other children?...." She always says: "test one, test them all!!!"

I think the most interesting point in the article I linked to is that second children are often not recognized as gifted because they DO present differently. So don't discount those unique gifts and differences!