IQ is the ability for a child to do exemplary things with his/her mind.

Intelligence is building upon that.

Being poor does not make you have lower IQ, nor does it make you less intelligent. A large number of the poor have come up from the depths and are very intelligent people.

Let's talk about intelligence, though. Lets say that everyone had the same intellectual capacity, but we still saw the same descrepancy in how well they did on standardized tests. Having little to eat and poor schools do not keep a child from learning from others. There is ready access to the internet through libraries in the U.S. with a wealth of information online, and a lot of books on the shelves there also. If you take away all genetic factors (tendency towards aggression, lower intellectual capacity, etc.) and environmental factors (is the child worried about being shot, peer pressure to join a gang or get into drugs or alcohol, etc.), then in the end it is more about parenting and community, not about poverty. If we were able to teach good parenting skills, social skills, and ethics adequately in schools, and help them develop sense of community, then many of the problems (unrelated to genetics) related to intelligence being lower would go away. I hope if anyone takes home anything from what I'm saying, it is that you can't throw money at a problem like this. Welfare can make things much worse (misusing food funds for drugs, setting up a cycle of dependence on government funds, etc.), but welfare is a perfectly logical solution to lack of money. We made that mistake before, and can't have a whole new generation of people buying into that statist crap.

However, back to the study. Genetic problems with IQ cannot be solved by money, period. Also, being poor does not make you have lower potential for intelligence. That has been my point all over this thread.