If it helps to ease your fears, ITBS administration is not horribly complicated, and it is a fairly straight forward test. Both DD (took it late last decade) and I (back in the early 80s) would finish the test in about half the allotted time.
And argh! on the must be two grades ahead to move one grade up issue. When DD was in K and we wanted to skip her into 2nd, they dinged her for not knowing things their own curriculum said would not be taught until the end of 2nd grade. So, in order to skip into 2nd, she has to have mastered 2nd grade material?- ummm... if she has mastered 2nd, wouldn't I then want her to skip into 3rd?
If she is getting the 99th percentile as a 3rd grader taking the 4th grade test, I think she'll do just fine - I would be shocked if she dropped below 80th percentile for two grades up.
Best of luck,
--S.F.
