>IQ has long been used as a reason for, e.g., why there is more poverty in the black community. Why is there more poverty? Simple! Their IQ is low and therefore

>IQ has long been used as a reason for, e.g., why there is more poverty in the black community. Why is there more poverty? Simple! Their IQ is low and therefore they're not able to succeed! Typically the argument isn't whether IQ is a determinant of success; it's whether the observed IQ differences between populations are the result of socio-economic disparity or some inherent racial characteristic. For example, we know that malnourishment (esp. iodine deficiency) and lead exposure are correlated with lower IQ, and malnourishment is also obviously correlated with poverty. But we also know that IQ is highly heritable.