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

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Jul 14, 2022

Richard Haier, a psychologist specializing in human intelligence, dives deep into the science of IQ tests and the G factor. He discusses the limitations of traditional intelligence metrics and critiques societal implications tied to IQ assessments. The conversation challenges the notion of intelligence as merely a number, exploring the interplay between genetics, personality, and academic success. Haier also addresses controversial topics, including the relationship between intelligence and race, urging for a compassionate and nuanced dialogue around these sensitive issues.

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INSIGHT

G Factor

Intelligence research uses the G factor.
G factor represents a mental ability common to all mental tests.

INSIGHT

G Factor Stability

The G factor is a stable measure of intelligence, grounded in genetics.
It's a universal "horsepower" of intelligence underlying different tests.

ANECDOTE

Scottish IQ Study

A Scottish study measured IQ in 11-year-olds, then again at age 70.
IQ at 11 strongly correlated with mortality 70 years later.

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