IQ tests can not easily be repeated. If you test with the wrong tester you may not be able to re-test for a year or more with a new tester on the same test. There are other tests, but it is likely the uni will be using the WISC4, and for most children this would be the most useful test for diagnosing 2e issues. The SB5 for example just doesn't test certain areas that can be weak in 2E kids.