If you look at the home page of the referred book "Intelligence: A Unifying Construct for the Social Sciences" http://www.ulsterinstitute.org/intelligence.html

If you look at the home page of the referred book "Intelligence: A Unifying Construct for the Social Sciences" http://www.ulsterinstitute.org/intelligence.html http://www.ulsterinstitute.org/intelligence.html the first referred reviewer is http://en.wikipedia.org/wiki/J._Philippe_Rushton http://en.wikipedia.org/wiki/J._Philippe_Rushton who wikipedia links also to racially biased research. I don't have qualms about trying to understand human condition through measurement - but starting from some very limited, simple hypothesis and applying it to a complex emergent system like the human civilization is scientifically fairly suspect. You will always get correlation between large set of unconnected numbers and the way these guys work is that they collect IQ 'data' and then muddle through the numbers until they reach conclusions for which any 1920's western racial theorist would be proud. This "research" would be totally in the "Pirates and global warming" category of the Spaghetti Monster creed http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster#Pirates_and_global_warming http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster#Pirate... - except it's not funny.