I'm not in your state, and our state doesn't have GIEPS, but I will say that I've found it very difficult to get test results ahead of the meeting even for regular IEP meetings. I never get them at all unless I specifically ask for them ahead of time, and specify a date by which I would like to have them. Like, "I'm so glad we could find a time on March 10 that worked for everyone. Can you please be sure to email a copy of the draft by March 8? A digital copy is fine, so don't worry about sending a paper ahead of time."
And yes, I'd think you've have to consent to the time of the meeting in some manner.
