I posted something on this in the pre-school thread yesterday, but I realize now that more people are likely to see it here. I hope nobody minds the re-post.
I was astonished to read a claim recently about how inaccurate IQ tests are for young children. The claim was that of the 4-year-olds who score 130 or above on an IQ test, only 25% will do so again at age 17. The claim was made in a New York Magazine article entitled "Why Kindergarten Admission Tests Are Worthless". (Reference
here.)
If it's true, there are all sorts of explanations for this, as some of the discussion brought out yesterday. But my question is whether it seems likely to be true. Any of those data folks out there have a view?
BB