Also consult with your local university's educational psychology department. Be persistent and call and call. Do not be surprised if the tester asks how you managed to find them. Our daughters had extensive free WJ-III testing done, plus school visits and home visits, all for free, by doctoral students under supervision of an educational psychology professor. Just pick up the phone and start dialing. There was a short wait in our case.
YMMV, though. Our first tester was a graduate student who was not very good. Our second tester was a graduate student who was fantastic, better than many full fledged psychologists. Both girls were tested later and had insurance pay most of the cost.
Still, the results on the tests by the graduate students on the WJ-III cognitive were very similar to the results by a trained neuropsychologist adminstering the WISC-IV (obviously, the actual tests were different, but the subtest scores were similar for similar tests, and the FSIQ was close).
