Secular declines in cognitive test scores: A reversal of the Flynn Effect: https://www.gwern.net/docs/iq/2016-dutton.pdf https://www.gwern.net/docs/iq/2016-dutt

Secular declines in cognitive test scores: A reversal of the Flynn Effect: https://www.gwern.net/docs/iq/2016-dutton.pdf https://www.gwern.net/docs/iq/2016-dutton.pdf http://www.americanscientist.org/issues/pub/smart-as-we-can-get http://www.americanscientist.org/issues/pub/smart-as-we-can-...