Perhaps you know someone with a 121 IQ and are wondering whether 121 is a high or low IQ level. Yes, 121 is an excellent IQ score. In fact, a 121 IQ indicates excellent intelligence. A 121 is not at the top of the intelligence scale, but it is higher than average. To put it in context, the majority of IQ scores range from 40 to 140. The average IQ fluctuates between 80 and 120. So yes, there is such a thing as a high IQ.
Ranges of intelligence
|IQ scale||Interpretation of IQ score||% of population|
|111-120||Above average intelligence||15.7%|
|80-89||Below average intelligence||15.7%|
An IQ score of 140 or above suggests that you are a genius or almost such, whereas 120–140 is considered "extremely excellent intellect." The range of intellect from 110 to 119 is referred to as "excellent intelligence," whereas the range of intelligence from 90 to 109 is referred to as "regular or typical intelligence." Intellect scores below 90 are generally regarded as evidence of mental retardation. The term "genius" is not an IQ score category; it refers to people who have extraordinary intellectual ability.
The genius IQ score was introduced in 1912 by Dr. Lewis Terman, who developed the Stanford-Binet Intelligence Test. The score was based on the results of this test given to students at the University of California, Berkeley. Before this score was established, psychologists used different methods to classify people with respect to intelligence. These included matching individuals' abilities with certain tasks they had to perform and estimating how many years old someone must be to learn a new skill or concept.
Intelligence is defined as the ability to understand things quickly and to remember what we learn. It is also described as the capacity for learning new information and applying it to our daily lives. Everyone needs to maintain relationships with others, including friends, family members, and coworkers. However, some people are better at doing this than others are. It is estimated that about 10% of the population is mentally retarded, which means that they have significant problems maintaining relationships.
An IQ score of 80 or below is considered severe mental retardation, while 70–79 indicates significant mental retardation. A score of 60–69 indicates mild mental retardation, 50–59 indicates moderate mental retardation, and 40–49 indicates significant mental retardation.
147 is an extremely high IQ. It is more than two standard deviations above the mean, which means that you are among the top 2% of intelligent people. Unless you were adopted, your parents must have been very smart people to give you an IQ this high. Actually, most people with an IQ this high are not only adopted but also have other intellectual and/or physical disabilities. There are actually very few people in the world who have an IQ between 145 and 150.
The average IQ around the world is 100, and half of the population has an IQ less than 95 and half of the population has an IQ greater than 105. So, most people's IQ falls within a relatively small range, suggesting that they can all be classified together as having "average" intelligence. In fact, the majority of people on Earth have IQs between 85 and 115, with males generally having higher IQ scores than females.
Scores above 115 are deemed "high IQ," while those above 130 to 132 (depending on the test) are regarded "very talented" and belong to the top 2% of the population. These people are called geniuses because they are very smart. They usually have an amazing ability to understand things quickly, learn many things at once, and solve problems in creative ways. Their brains work differently from most other people's: they tend to grow more of some parts of the brain and less of others.
Geniuses can be men or women, but they are often male. Famous geniuses have included Albert Einstein, Isaac Newton, Benjamin Franklin, Thomas Edison, and Charles Darwin. The number of female geniuses is small compared with that of their male counterparts; only 6% of all genius scores on average have been obtained by women.
The IQ tests used to measure genius are extremely difficult to pass; you will need to score highly on both verbal and non-verbal portions of the exam to reach this level. Only around 1 in 100 people score high enough on both parts of the test to be a genius. The majority fail one or both parts of the exam.
The highest recorded IQ score was 188, scored by Canadian Henry Tyson. The lowest score ever recorded was 3 on several subjects for American Carl Wilhelm Siemens.