Still, since our experience with testing DD did not really give the results we expected based on the kid we see, I feel a little wary. I really would not want him to feel inferior because he didn't "get in" to his sister's school.
I would make very sure that getting into his sister's school was not being described as an acheivement or accomplishment, and that the school itself was not being described as being "better" or somehow more desirable than the other school he might attend if his scores don't match the selection criteria for his sister's school. I'd talk to him about how testing is to help find the right educational fit, and the right educational fit is different for different people.
