Are You Smarter Than Your Grandfather? Probably Not.

Senility isn’t the answer; IQ scores are increasing with each generation. In a new book, political scientist James Flynn explains why

IQ scores have significantly risen from one generation to the next. (Getty Images / Brand New Images)

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What do you predict will happen to IQ scores going forward?

One of the most interesting predictions is what will happen to the developing world. If they industrialize, in theory, they should have the explosive IQ gains in the coming century that we had in the last century.

In my book, I study six developing nations. Kenya is undergoing explosive IQ gains. Brazil and Turkey are undergoing quite profound gains. Nations like Saudi Arabia and the Sudan are not, but the Sudanese keep having civil wars and the Saudis are really just living off of oil revenue. They are not industrializing in any real sense. Dominica is the sixth case. There, they are making IQ gains, but their infrastructure is wiped out about every 10 years by hurricanes, earthquakes and tsunamis. I predict that Brazil, Turkey and Kenya will industrialize over the next century and begin to rival the Western world for IQ.


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