What is normal IQ range?

What is normal IQ range?

between 85 and 115
IQ tests are made to have an average score of 100. Psychologists revise the test every few years in order to maintain 100 as the average. Most people (about 68 percent) have an IQ between 85 and 115. Only a small fraction of people have a very low IQ (below 70) or a very high IQ (above 130).

Who has the highest IQ in T?

With a score of 198, Evangelos Katsioulis, MD, MSc, MA, PhD, has the highest tested IQ in the world, according to the World Genius Directory. The Greek psychiatrist also has degrees in philosophy and medical research technology.

Is a 130 IQ good?

The number actually represents how your results compare to those of other people your age. A score of 116 or more is considered above average. A score of 130 or higher signals a high IQ. Membership in Mensa, the High IQ society, includes people who score in the top 2 percent, which is usually 132 or higher.

What is the top 2 percent IQ?

The scores above 115 are generally considered as “high IQ,” and those above 130 to 132 (depending on the test taken) are usually considered highly gifted and are in the top 2 percent of the population. This level also qualifies you for membership in American Mensa.

Who has an IQ of 300?

William James Sidis is alleged to have had an IQ of 275 With an IQ between 250 and 300, Sidis has one of the highest intelligence quotients ever recorded. Entering Harvard at the ago of 11, he was fluent in more than 40 languages by the time he graduated and worked his way into adulthood.

Is an IQ of 150 good?

85 to 114: Average intelligence. 115 to 129: Above average or bright. 130 to 144: Moderately gifted. 145 to 159: Highly gifted.

How rare is an IQ of 150?

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….Historical IQ classification tables.

IQ Range (“ratio IQ”) Percent of Group
150–159 0.2
140–149 1.1
130–139 3.1
120–129 8.2

Which country has the highest IQ 2020?

Ranked: The 25 Smartest Countries In The World

Ranking Country Average IQ
1 Singapore 107.1
2 China 105.8
3 Hong Kong 105.7
4 South Korea 104.6

Who is the smartest woman alive?

Marilyn vos Savant
Born Marilyn Mach August 11, 1946 St. Louis, Missouri, U.S.
Occupation Author columnist
Spouse Robert Jarvik ​ ( m. 1987)​

What’s the average score on the IQ test?

IQ Test Scale Intelligence Interval Cognitive Designation 115 – 129 Above average 130 – 144 Gifted (2.3% of test takers) 145 – 159 Genius (Less than 1% of test takers) 160 – 175 Extraordinary genius

What do T scores mean on test reports?

T Scores are another method of describing a person’s performance, where a T Score of 50 is precisely average and standard deviations are 10 points. Average scores are in the range of 40 to 60.

What’s the IQ range on the Stanford Intelligence Scale?

Stanford–Binet Intelligence Scale, Fourth Edition (S-B IV) 1986 classification; IQ Range (“deviation IQ”) IQ Classification 132 and above Very superior 121–131 Superior 111–120 High average 89–110 Average 79–88 Low average 68–78 Slow learner 67 or below Mentally retarded

What is the average IQ score in Canada?

What is the average IQ score in Canada? According to Lynn’s study, Canada came in one point under the global average of 100 for an average IQ score of 99, one point ahead of the United States. Does the IQ scale range change over time?