Originally Posted by Val
This article in today's NY Times seems to be appropriate for this thread.

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Instead, Piaac suggests that the wide disparities of knowledge and skill present among American schoolchildren are not ameliorated by higher education. If anything, they are magnified.
This should be expected. Higher-IQ youths are more educable. Those with IQ of 100 can learn little at college that is truly at the college level, those with IQ of 115 can learn more, and those with IQ of 130 can learn a lot.