One of the first 'intelligence' tests was the Binet-Simon test, which was modified by a psychologist at Stanford to become the Stanford-Binet testpic.twitter.com/dO4ch6vTZB
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One of the first 'intelligence' tests was the Binet-Simon test, which was modified by a psychologist at Stanford to become the Stanford-Binet testpic.twitter.com/dO4ch6vTZB
Originally, this test was designed simply to identify children who were underperforming scholastically (i.e. maths, science, language ability)
It was then broadened somewhat, with questions being modified and added, and marketed less as a test of ability and more as a test of what we might now call 'intelligence'pic.twitter.com/Ds8UlP8WRx
Ironically, Binet (the psychologist who designed the intelligence test) was extremely angry with how his test was used, in part because he argued that 'intelligence' is not a fixed quantity and shouldn't be used to discriminate against peoplepic.twitter.com/EjlplemNuY
So the basic story of how psychological IQ testing came about centres around school abilities: maths, science, language etc
But there's a huge issue: we know that how well you perform on these tests is complex. Wealth, for example, is a huge predictor of IQ test abilitypic.twitter.com/lnXsOp4czU
The point here being not that wealthier people are more intelligent, but that being wealthy makes you better at answering the types of questions IQ tests ask
So basically, people think that IQ is directly related to maths/language etc because they've been told that their IQ score is reflective of 'intelligence'
But unfortunately, IQ tests - even the good ones - aren't tests of 'intelligence', they're tests of how well you can do IQ tests
Those two things - 'intelligence' and 'ability to do IQ tests' - are obviously related, but how much and in what way depends entirely on what you value
We know, for example, that IQ tests are culturally determined. As an Australian, if I were to do a translated French IQ test I'd probably do terribly
Which means that what people are valuing as 'intelligence' is almost always less about how clever someone is and more about an arbitrary test result
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