I agree with St pauli girl - results are quite unstable at 3 and in particular not every bright child is going to be equally focused, cooperative and easy to test. Our kids were tested by a gifted specialist team who generally won't test under 4 without special circumstances (younger sibling of gifted children with early school entrance deadlines looming for example). While I was talking to her about our two older girls, I asked when to test #3, and she said they don't test young if they can avoid it "Because you really have to put on a performance for the child to get them to perform for you"....