The inference from social class to IQ to economic success is erroneous.

Evidence

The proponent of IQism argues that higher social class leads to higher IQ, which, in turn, leads to a greater chance of economic success. We shall show, however, that this inference is simply erroneous. — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America, 1078

Categorization

• XREF: connects to: Education’s economic payoff has little to do with measured IQ for most people — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America:…, 213; Controlling for IQ barely weakens the link between education and income — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America:…, 1028; Schooling is too weak an influence to equalize economic opportunity — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America:…, 565

Broader Connections

• Controlling for IQ barely weakens the link between education and income #corroborates (0.92) — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America, 1028
• Education’s economic payoff has little to do with measured IQ for most people #corroborates (0.90) — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America, 213
• Schooling is too weak an influence to equalize economic opportunity #corroborates (0.80) — Samuel Bowles and Herbert Gintis, Schooling in Capitalist America, 565