Sep 22, 2019 · A Breakdown of IQ Scores. The average score on an IQ test is 100. Sixty-eight percent of IQ scores fall within one standard deviation of the mean. That means that the majority of people have an IQ score between 85 and 115. 1 to 24: Profound mental disability. 25 to 39: Severe mental disability. 40 to 54: Moderate mental disability.
While tests may vary, the average IQ on many tests is 100, and 68 percent of scores lie somewhere between 85 and 115. While IQ can be a predictor of things such as academic success, experts caution that it is not necessarily a guarantee of life success.
IQ Ratings of Over 140 --Genius or near genius IQ Ratings of 120 to 140--Highly intelligent IQ Ratings of 110 to 119 --Very intelligent IQ Rating of 90 to 109 --Normal or average intelligence.
The main idea behind the adult average IQ score is that there is a majority of the people who have the same level of intelligence as their fellows have. However, there comparatively few people who are highly intelligent or feeble-minded. The high intelligent people are called geniuses, and the confused mind people have their idiot boxes.