Thank you, aeh. I agree with you completely. The more I've mulled it over, the more I don't understand where the tester was coming from with that comment. It seems like parents being informed would be a good thing - they can discuss the pros and cons with the tester before selecting an instrument, they can understand what the results will and won't tell them, etc.
I am not one to look for offense, but I can't help wondering whether the tester just doesn't trust homeschoolers. Ugh.
We have a university's psychology clinic that we could use for the testing - not free, but not completely unaffordable either. Rather than making waves with the school/district, I may go that route.