Page "Flynn effect" Paragraph 41

There is a controversy regarding whether the US racial gap in IQ scores is converging.

If that is the case then this may or may not be related to the Flynn effect.

Rushton and Jensen argue against expecting the Flynn Effect to narrow the US black-white IQ gap since they see that gap as mostly genetic in origin and there is evidence from mathematical analyses that what causes the Flynn effect is different from what causes the black-white gap.

Flynn has replied that he never claimed that the Flynn effect has the same causes as the black-white gap but that it shows that environmental factors can create IQ differences of a magnitude similar to the gap.