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Index/Topics/Flynn Effects

Flynn Effects

The phenomenon of increasing average IQ scores over time, due to environmental factors.

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Jan 27, 2026
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How is IQ measured and what does a 195 score imply clinically?

IQ is a standardized, norm‑referenced score derived from performance on validated cognitive tests; most modern scales use a mean of 100 and a standard deviation of 15 so that scores map onto a normal ...

Jan 26, 2026

What is the average IQ for African-American women

There is no single, definitive published figure in the supplied reporting that gives an average IQ specifically for ; the sources present population averages for African Americans (commonly cited in t...