By Girma Berhanu
Göteborg University, Sweden

I review the book IQ and the Wealth of Nations, written by Richard Lynn and Tatu Vanhanen. I critique the authors’ major assertion that a significant part of the gap between rich and poor countries is due to differences in national intelligence. The authors claim that they have evidence that differences in national IQ account for substantial variation in per capita income and growth of a nation. This essay review debunks their assumptions that intellectual and income differences between nations stem from genetic differences. This critique provides an extended review of the research literature that argues against these assumptions and presents a different picture from that presented by Lynn and Vanhanen about the concept of intelligence, what IQ measures and does not measure. The essay exposes the racist, sexist, and antihuman nature of the research tradition in which the authors anchored their studies and the deep methodological flaws and theoretical assumptions that appear in their book. The low standards of scholarship evident in the book render it largely irrelevant for modern science. This essay specifically deals with the IQ value of Ethiopian immigrants that came from Israel, used by the authors as representing the National Average IQ of Ethiopia. Most of these immigrants had rudimentary knowledge of literacy, and experienced an abrupt transition from rural Ethiopia to Israel with all the accompanying effects that it entails such as trauma, dislocation, and cultural shock. The test was conducted a few months after their arrival. That specific study, conducted by two Israelis, that assigns low IQ to the immigrants is also replete with technical and statistical errors. One might arrive at the conclusion that further action of a legal nature would be necessary to put an end to such postulations, which in my view, do not bear scrutiny… click here to continue reading.