My son's first test was administered in a hour- the tester was horrible and had never tested a child under 12. We cheaped out and tried to do it at the local university with their students. The tester said in her report that he would probably need serious help in class to succeed, might not be mainstreamed all day and that he was far below average in a few areas. We honestly thought she had some other kid in her office- none of it jived with our son.
Fast forward 6 months, new tester used to testing kids under 8 and specifically worked with HG kids. Major difference, this tester laughed hysterically at the previous tester's recommendations, gave us a confirmed HG IQ and said that the other tester was a moron :-)
It all depends on the tester, the test, the day and the child.
