IQ Test Scores: The Basics of IQ Score Interpretation

On most standardized tests, an IQ of 100 is at the 50th percentile. Most of our IQ tests are standardized with a mean score of 100 and a standard deviation of 15. What that means is that the following IQ scores will be roughly equivalent to the following percentiles: IQ Percentile 65 01 70 02 75 05 80 09 85 16 90 25 95 37 100 50 105 63 ................
................