IQ Test HD, How Smart Are You? for iOS

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An intelligence quotient, or IQ, is a score derived from one of several different standardized tests designed to assess intelligence.The term "IQ"...

An intelligence quotient, or IQ, is a score derived from one of several different standardized tests designed to assess intelligence.The term "IQ" comes from the German Intelligenz-Quotient. When modern IQ tests are constructed the median score is set to 100 and a standard deviation to 15.Today almost all IQ tests adhere to the assignment of 15 IQ points to each standard deviation but this has not been the case historically.Approximately 95% of the population have scores within two standard deviations of the mean.If one SD is 15 points, then 95% of the population are within a range of 70 to 130.