I can give you my input as a parent and a school psychologist! Yes, it's kind of a drag how long testing can go on when the subject keeps getting answers right, hee hee.
If she ceilinged out, you will not be getting accurate numbers. This is straight forward - for example, the ceiling may require 6 items in a row incorrect. Sometimes it takes a quiet moment to double check this, but this question is answered before you run the results through a computer or anything. It's also straight forward math that if she ceilinged out, the numbers are an underestimate of her score. [duh] I kind of feel for the examiner - "shoot, I spent all this time and the kid ceilinged out!" However, if she did, she'll require more testing if getting the valid number is necessary. She may not require more testing if proving eligibility for gifted can be done with the numbers even with the ceiling.
Regarding IQ with youngsters, there's a pretty clear consensus that IQ measurements are useful at young ages but may be subject to change. Being in the field and a mom, I had my 2E fully evaluated at 9.5 years.
I am not sure why your tester used only achievement - maybe to help communicate with the school, which is interested in achievement levels? The G/T program at my son's school had the achievement scores at the 97th, but wanted IQ scores in case he was "just a high achiever." This despite the state warning that IQ scores can be depressed by the effects of the disability. PS 2E can have declining IQ scores over time as coping with the effects of the disability drains the child.
My older son is in class with a 2E who was promoted to his grade. This kid really has social problems, plus he's been puny forever. From my perspective, he has not been proof that grade promotion is a good idea. I skipped 10th grade and still remember how socially challenging that was and how immature I felt. It did drain a lot of my attention from academics, and choosing colleges was suddenly in my face. And I don't have two Es.
Some of the social interpersonal ASD stuff may be part of the asynchrony of gifted children.
Last edited by LinCO; 05/08/11 08:41 AM.