For example, on The Wechsler Adult Intelligence Scale and the Stanford-Binet test, scores that fall between 90 and 109 are considered average IQ scores. On these same tests, scores that fall between 110 and 119 are considered high average IQ scores. Scores between 80 and 89 are classified as low average.
Also, 95% of the norm group has an IQ score within two standard deviations of the average. So, 95% of the norm group has a score between 70 (100 – 30) and 130 (100 + 30). This means scores of over 130 only occur in 2,5% of cases.
An average person scores 100 on an IQ test using the Stanford-Binet IQ scale. A score of 137 to 160 is considered the top 1 percent to . 01 percent of all scorers.
IQ scores between 90 and 109 indicate a normal range or average intelligence. Individual adults usually score somewhere in between the 70-130 range, with 100 being the theoretical average.
"Steve Jobs likely had an IQ roughly 160 or above. In Walter Isaacson's biography, near the end of 4th grade, Jobs was tested. Jobs said: 'I scored at the high school sophomore level. ' This means he was a 4th grader performing at the 10th grade level.
According to some acclaimed websites, she is said to have an IQ of 160. As a matter of fact, she is listed in the Guinness Book of World Records as the youngest singer ever to sign at age 11.
In general, an IQ score is defined with a median and mean of 100. Scores above 130 are labeled as above average or “very superior,” while scores under 70 would be considered below average or labeled as “borderline impaired.” Most people have an average IQ between 85 and 115.
The average IQ for a 14 year old is 100. This means that the average 14 year old has the same intelligence as the majority of people in society. However, there is significant variation in IQ scores, so some 14 year olds may have significantly higher or lower IQs than this average.
Two of the most well-known IQ tests are 'Stanford-Binet' and 'Cattell' (explained in more detail below). In practice, qualifying for Mensa in the top 2% means scoring 132 or more in the Stanford-Binet test, or 148 or more in the Cattell equivalent.
An IQ of 120, therefore, implies that the testee is brighter than about 91% of the population, while 130 puts a person ahead of 98% of people.
There are different ways to measure IQ, but they all rely on similar principles, which means it's possible to increase your IQ with study and training. Improving your IQ can help you to improve your problem-solving and lateral thinking skills, which can be useful in many careers.
Can IQ change with age? Yes. However, there is heavy debate over exactly how IQ and intelligence change with age. Studies have demonstrated that a person's fluid intelligence tends to decrease starting in their late 20s, while their crystallized intelligence tends to increase as they grow older.
55 to 69: Mild mental disability. 70 to 84: Borderline mental disability. 85 to 114: Average intelligence. 115 to 129: Above average or bright.
110 - 119 is "superior intelligence", while 90 - 109 is "normal or average intelligence". An IQ between 80 and 89 suggests "dullness", while a score of 70 to 79 is classed as "borderline deficiency".
But genetics can explain the wide range of possible IQs too because so many different genes are involved in developing and running a brain. It is possible, for example, to inherit all the higher IQ genes from each parent and leave the lower IQ ones behind. Now the child will be brighter than the parent.
There's no record of the lowest IQ ever. However, the lowest IQ score possible is zero.
The average IQ of countries around the world can range, from Indiana at 76.24 to China at 104.10. Other examples of average IQ by country from The Intelligence of Nations report include: Finland: 101.20.
An IQ of 100 is average. Anything above 100 will be above average and anything below will be below average. At 95, you are slightly below average. In percentile terms, 95 falls at 36.9441404206%.
By the current "deviation IQ" definition of IQ test standard scores, about two-thirds of all test-takers obtain scores from 85 to 115, and about 5 percent of the population scores above 125.
Miley Cyrus, IQ 120
Singer-songwriter Miley Cyrus has an IQ slightly above average. For her, a score of 120.
Other people with some of the highest IQs are Sho Yano, who had an estimated IQ of around 200 at 10 years old, and Adragon De Mello, who had a projected IQ of 400 and graduated from the University of California, Santa Cruz at 11 years old, according to Reader's Digest.
Michael Kearney - (IQ - 200–325)
He is known for setting world records as the youngest man to graduate and teach at the university, as a teenager and with an IQ between 200 and 325. He completed his bachelor's degree at the University of South Alabama, USA, at age 10.