Or perhaps it's the DYS level that is too low. I think the problem is in the inability of current tests to discern true levels in the tails. I think everyone would probably agree that someone scoring a 145 IQ is at least HG, however, because of the inherent test problems, they might be much higher. I think DYS sets the bar on the low side in order to make up for this
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If I recall correctly, that score minimum on the WISC IV was set to 145 BEFORE extended scoring existed for the test. It makes sense because in the gifted test group the children were generally scoring lower on the WISC IV than they did on the WISC III. There was only one boy who scored a 150 in that group and no one scored above 150.
I am aware of a child who scored 160, but that was WITH extended scoring. I'm not privy to loads or score data, though, I'll leave that to the forum test score guru.
I will say that I do agree with Kriston that a score above 145 indicates a child is beyond actual measure since that score usually entails topping out several sub sections.
