IQ tests are supposed to have a score of 100 on average. Psychologists adjust the test every few years to keep the average at 100. The majority of people (about 68 percent) have an IQ between 85 and 115. Only a tiny percentage of persons have a very low IQ (below 70) or a very high IQ (above 140). (above 130).
The average IQ in most countries is about 100. This means that one out of every 10,000 people has an IQ of 70 or less, and one out of every 1000 people has an IQ of 150 or more.
The highest recorded IQ was 188 from Svante Tuomasola of Finland, who died in 1971 at the age of 31. The lowest recorded IQ was 3. A young woman named Anne Wojcicki who lived in London in the late 1700's had an IQ of 35. There are still more female than male with intellectual disabilities; this may be because women have fewer advantages under the current system where having a higher IQ is usually seen as a benefit.
Intelligence is defined as "the ability to learn new things and to apply what you know," so if someone has intelligence equal to or greater than other people but they use their intelligence to compare themselves to others rather than appreciate what they already know, then they won't feel satisfied with themselves.
Intelligence is not the same as education. Intelligence can be measured by tests while education requires learning certain concepts and acquiring knowledge and skills.
A score of 100 on several tests is considered the average IQ. Sixty-eight percent of the times, the scores are within one standard deviation of the mean (that is, between 85 and 115). That indicates that roughly 70 percent of all persons score within 15 points of the average. Only 5 percent score more than 1 standard deviation below the mean.
The lowest score we have on record is 3. The highest is 208. These numbers come from studies conducted in 2001 by Richard Lynn and John Flynn of the University of Melbourne. They found that there is no significant difference between male and female intelligence (average male IQ = 100, female average IQ = 100), but that intelligence declines with age. In other words, the younger you are, the smarter you are. Those who die before reaching old age have significantly lower averages than those who live longer.
A low IQ is defined as one with an IQ of 70 or lower. 1. The average score on most standardized IQ tests is set at 100. Anything beyond 140 is regarded as high or genius-level. Approximately 68 percent of the population scores between 85 and 115, which is within 15 points of the norm. The remaining 32 percent falls between 115 and 140, which is another 15 points below the norm.
2. An IQ of 85 or lower is considered extremely low. This means that you are among the 12 percent of people in the world who have an IQ that small. The majority of people have an IQ between 90 and 110.
3. People with an IQ between 75 and 85 are called mild mentally retarded individuals. They can live independent lives but will need assistance with daily tasks such as cooking meals, cleaning their homes, paying bills, etc. Most will work at jobs that require limited intelligence but that pay well. Some may even be supervisors.
4. Individuals with an IQ from 60 to 74 are considered severely mentally retarded. They cannot take care of themselves and usually require supervision all the time. These people are unable to do any task that requires cognitive ability such as preparing food, doing chores, or managing money.
5. People with an IQ between 50 and 59 are considered profoundly mentally retarded. They are incapable of caring for themselves at all.
An intelligence test can be used to determine a person's IQ. By definition, the average IQ is 100. A score of 100 or more indicates that you fared better than the typical individual, while a score of less than 100 indicates that you performed (slightly) worse. The score does not tell you how many points you are above or below the average, only whether you are higher or lower than this group.
The most commonly used test is called the Wechsler Adult Intelligence Scale (WAIS). This questionnaire contains several sub-tests that measure different aspects of intelligence. The WAIS was developed by William J. Wechsler and is based on the work of Alfred Binet, who is best known for developing the first standardized test of mental ability, the French version of which is now called the "MBTI". The WAIS has been updated over time but remains one of the most effective tools for assessing adult cognitive abilities.
Other useful tests include the Stanford-Binet Intelligence Test, the Woodcock-Johnson Tests of Cognitive Ability, the Kaufman Assessment Battery for Children, the Denver Development Screening Test, and the Peabody Picture Vocabulary Test.
There are also many other tests available for use with children and adults. These range from very short measures designed to assess specific skills such as visual perception or memory capacity, to much longer tests intended to provide a complete picture of overall cognitive ability.