what is an average iq score for adults
Ever since the first IQ tests emerged, attempts to classify IQ have followed. While different test publishers utilize different scoring systems, for many modern IQ tests the average (or mean) score is set at 100 with a standard deviation of 15 so that scores conform to a normal distribution curve. 68 percent of scores fall within one standard deviation of the mean (that is, between 85 and 115)