I guess I would say we are trying to determine if there is anything "extra" going on besides being cognitively advanced.
This sounds totally reasonable! I'm glad to hear that your DD is maturing - Yippee! and it's great that you have someone to check her and give you insight. I guess I think more cog testing is a good idea as long as it isn't WPPSI. Yes I would ask 'by name' before saying yes to the test - if the tester is as good as you say, she won't take offense. You can blame me if you want, "My bossy older sister Grinity keeps telling me that my DD is too old for WPPSI, and I'm mortified to question you in any way, but I won't get any peace at home until I ask you what kind of cog test your were planning to do." or something like that!
Smiles,
Grinity
