The average IQ score, by definition, is 100. People who take IQ tests are compared to each other, and the average score is placed at 100.Continue Reading
However, IQ scores change over time. While some make the argument that IQ scores are immutable and can't be changed by external factors, Jim Flynn has shown that IQ scores have risen in much of the world since approximately 1930.
There is no single IQ test, and individuals might have significantly different scores on different tests. Although scores between different tests tend to correlate fairly well, it's possible for someone who scores below average on one type of test to score above average on another.Learn more about Biology
IQ scores range from one to over 200 with the average score being 100, as of 2014. Sixty-eight percent of all IQ scores are within one standard deviation of the average. This means that most people have an IQ score between 85 and 115.Full Answer >
On an Intelligence Quotient (IQ) test, a score of 140 or higher is considered a high IQ while a score of 160 or higher is commonly considered to be a "genius" level score. An IQ score of 200 or higher is commonly considered to put an individual at the level of "unmeasurable genius."Full Answer >
Most IQ scores fall within 15 points of a median score of 100. A normal distribution of IQ scores around this median means that 86 percent of scores fall within one standard deviation, or between 85 and 115. All but 5 percent fall within two standard deviations.Full Answer >
An IQ of 100 is an average score. A score of 138 is in the 99.4 percentile, which means only 0.6 percent of the population has a higher IQ. Ninety-five percent of the population scores between 70 and 130.Full Answer >