None of the numbers we recieved on the WISC were over 145...They were hovering right around 140. How do you calculate the GAI?

I'm thinking on the WISC IV she's close but not quite there. The other tests where she was over 145 (K-BIT and Peabody) aren't accepted tests.

We'll wait and see how she does on Explore, and if she qualifies that way we'll work on a portfolio. Do NWEA scores count as achievement testing? The way I read the website, they have to have two of the three options. She is right on the fence with the IQ testing. I think she could benefit from services, but I know there are kids with more extreme needs. I won't push too much, I just want what is best for her. Her school acts like they're not exactly sure what to do with her, so the guidance would be nice. I think her needs are a little more extreme than what they're used to dealing with.
Thanks for any further advice-
Julie