“Unlock the Secrets: 65 Mind-Blowing Facts That Will Ignite Your Curiosity!”
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When Brown talks about testing, he’s referring to an Intelligence Quotient, or IQ test. The BBC’s Science Focus puts it like this: “Scores are gathered by participants completing standardized tests that measure abilities in puzzle-solving, memory, and more. Based on a median score of what’s typically around 100, your given IQ score is relative to that of the general intelligence of the population. Below 85 is seen as a poor score, 130 and above is smart (in the top 2% of the population).”
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“Scientifically, IQ is the difference between someone’s chronological age and their mental age,” said Brown, before getting a bit more technical. “Traditionally, this was established by administering a test and comparing the results with previous test takers to see what age the average person would be when they achieved the same results. The formula is basically MA/CA * 100.”
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Brown added that test results could differ from day to day, “It is important to note that this number is a snapshot of a person at one moment in time. Modern tests use what is called a confidence interval to say that we can be 90% sure that this person’s IQ will fall between X and Y on any given day. That is usually the IQ score the test yielded +/- 5 points.”
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