I'd say that, if you don't agree that either option she's mentioned is the reason for the testing, that you reword it for her. I'd say something along the lines of, "we'd like testing to help us ascertain what type of educational accommodations she needs. At this point, we are uncertain as to whether she'd benefit from grade acceleration so we are not testing specifically with that purpose. However, should the testing indicate that her needs are beyond that which can be met without acceleration, we might be open to considering acceleration at that time."