Mind

What is the average IQ worldwide?

100

IQ is designed so that the global average is always 100 (on the Wechsler scale, SD=15). However, test score averages differ significantly by country, primarily due to education access, nutrition, and living standards rather than inherent cognitive differences. Scores in high-income countries tend to cluster around 98–103.

Source: Wechsler Adult Intelligence Scale (standardised)

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