One Century of Global IQ Gains

  title={One Century of Global IQ Gains},
  author={Jakob Pietschnig and Martin Voracek},
  journal={Perspectives on Psychological Science},
  pages={282 - 306}
The Flynn effect (rising intelligence test performance in the general population over time and generations) varies enigmatically across countries and intelligence domains; its substantive meaning and causes remain elusive. This first formal meta-analysis on the topic revealed worldwide IQ gains across more than one century (1909–2013), based on 271 independent samples, totaling almost 4 million participants, from 31 countries. Key findings include that IQ gains vary according to domain… 

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