I completely agree with HK on this one… the school is not going to change anything because of private test results. They either get it or they don't. You will be wasting your money if that's the reason you are doing it.
I have friends with PG kids, and you may have to try several different educational models to find one that fits. In some cases, certain models only work for a couple of years until you have to try something else…
Right now I would focus on trying to give them ways of coping with the anxiety.
