In his article "In Italy, North-South differences in IQ predict differences in income, education, infant mortality, stature, and literacy," Richard Lynn claims to have found the reason causing the divergence between the Northern and the Southern regions of Italy. This article identifies the four main hypotheses formulated in his paper and presents significant evidence against each one of them. We claim that the evidence presented by the author is not sufficient to say that the IQ of Southern Italians is lower than the one of Northern Italians; that his analysis does not prove that there is any causal link between what he defines as IQ and any of the variables mentioned; that there is no evidence that the alleged differences in IQ are persistent in time and, therefore, attributable to genetic factors.
Felice and Giugliano. "Myth and reality: A response to Lynn on the determinants of Italy's North-South imbalances". Intelligence, 2011.
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