From Charles Murray at NRO:
On Monday, May 6, Robert Rector and Jason Richwine of the Heritage Foundation published a study of the fiscal effects of immigration amnesty, arguing that the costs would amount to $6.3 trillion. Controversy greeted the report, but of the normal kind, with critics making specific allegations that the costs were calculated using unrealistic assumptions.
On Wednesday, the Washington Post revealed that Richwine’s 2009 Ph.D. dissertation at Harvard’s Kennedy School had said that, on average, Latinos have lower IQs than do non-Latino white Americans and the nation should consider incorporating IQ into immigration decisions. The blogosphere and some elements of the mainstream media erupted in denunciations.
On Friday, the Heritage Foundation announced that Richwine had resigned.
I have a personal interest in this story because Jason Richwine was awarded a fellowship from my employer, the American Enterprise Institute, in 2008–09, and I reviewed the draft of his dissertation. A rereading of the dissertation last weekend confirmed my recollection that Richwine had meticulously assembled and analyzed the test-score data, which showed exactly what he said they showed: mean IQ-score differences between Latinos and non-Latino whites, found consistently across many datasets and across time after taking factors such as language proficiency and cultural bias into account. I had disagreements then and now about his policy recommendations, but not about the empirical accuracy of his research or the scholarly integrity of the interpretations with which I disagreed.
