2min chapter

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#302 – Richard Haier: IQ Tests, Human Intelligence, and Group Differences

Lex Fridman Podcast

CHAPTER

What's the Origin of the G-Factor?

Charles Spearman invented the correlation coefficient, essentially. And when he used it to look at student performance on various topics, he found all the scores were correlated with each other and they were all positive correlations. So that's where the general comes in. Something about general intelligence. That's some specific test, but across all tests.

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