General Discussion
In reply to the discussion: Meet the schoolgirl, 12, who has an IQ of 162... [View all]wildeyed
(11,243 posts)Modern tests only go up to 160. If she got a score like that on the WISC IV using the extended norms, that is a freakishly high score. The other common IQ test, the Stanford Binet, only goes to about 160 as well, if I recall. The other thing that is important to note about modern tests, the ceilings are very low. So any score above 140-145 is very, very high. The kids are simply hitting too many ceilings at that point to know what their true score would be.
There is an old, out of date test, the Stanford-Binet LM, that can yield scores that high regularly, but it has not been normed since the 70's. Comparing an old LM score to the new tests..... well you can't do it. Apples and oranges. It sounds like they were using the old tests or some other type of test, since the other kid only made top 2% with a score of 150+. On the modern tests, that would be considered profoundly gifted.