The Intelligence Quotient- or IQ- is one of the most popular subjects in psychology. Yet despite us often using IQ as a shorthand for intelligence, and even using it to define others, misconceptions about IQ are often louder than explanations.

So how do IQ tests work, and what does an IQ score mean?

1) An IQ test does not directly measure your ability. It uses maths to estimate your ability in relation to other people.

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