The Truth About IQ

Last week, I argued that our 21st century understanding of genetics invalidates the idea of fixed, innate abilities. Genes influence everything but determine almost nothing on their own. What, then, is IQ? Conventional wisdom says that IQ scores reveal our native intelligence. According to this view, IQ tests are different from school grades, different from …

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What constitutes a person’s IQ?

The term IQ, or Intelligence Quotient, generally describes a score on a test that rates the subject’s cognitive ability as compared to the general population. IQ tests use a standardized scale with 100 as the median score. On most tests, a score between 90 and 110, or the median plus or minus 10, indicates average …

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Brains for Instinct

Multi-tasking is something we’ve long been encouraged to practice, but it turns out multitasking is actually impossible. When we think we’re multi-tasking, we’re actually context-switching. That is, we’re quickly switching back-and-forth between different tasks, rather than doing them at the same time. The book Brain Rules explains how detrimental “multi-tasking” can be: Research shows your …

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