Like Cricket, I have a 2e child who has been tested twice and come out with scores about 20 points different (higher in our case) the second time around. Neither score is considered to be anywhere near his actual IQ, as he simply doesn't think in the way needed for the test. I wouldn't expect it to vary that much in a non-2e child.

I would push them to use the scores they have, but if they insist, be prepared to battle if her score doeesn't qualify her the second time around.