
Updated National IQ estimates (2025):
- Five highest IQ countries worldwide: Singapore (109), Japan (106), Taiwan (105), South Korea (104), and Estonia (102).
- Contrary to prior overestimates, China's average IQ is 100, on par with the Netherlands.
- Despite massive third world immigration, the average IQ in Western countries ranges from 95 to 100.
- Average IQ in the vast majority of Sub-Saharan African countries is between 65 and 75.
- "A strong correlation between IQ and GDP per capita was observed (r = .82)"
National IQs: measurement and defense, Parra & Kirkegaard (2025) (https://openpsych.net/files/papers/Parra_2025a.pdf)
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