Do you oppose the EPA decision to reduce mercury pollution because it lowers children’s IQ on the grounds that IQ isn’t a good measurement of intelligence?
The possible effect of environmental pollutants on human health (mental and/or physical) is another fascinating and extremely complex topic. I’ll avoid venturing into these deep waters on this particular thread.
I’ll see if I can find the books I referred earlier regarding intelligence testing for people interested in delving further into this topic.
EDIT: One interesting factoid I recall—IQ tests were originally developed to detect impaired mental function only. However, performance on these tests is now used to justify claims of superior mental function. As I recall, among experts this use of IQ testing is controversial.