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Russia and China tend to score high on IQ tests because these studies are often conducted in urban areas. In Russia, only a few major cities are typically included, and in China, the government may influence which data gets published. This can lead to inflated scores that don’t fully represent the national average.
There’s another metric called the Intellectual Competitiveness Index (ICI), which evaluates how effectively a country converts its cognitive potential into education, innovation, and economic output. While Russia and China have high IQ scores, their ICI ratings are more modest.
Think of IQ as the horsepower of an engine, and ICI as the quality of the engine’s design, maintenance, and transmission. High horsepower doesn’t guarantee performance if the rest of the system isn’t optimized.
https://worldpopulationreview.com/country-rankings/average-iq-by-country