An intelligence quotient (IQ) is a score derived from one of several standardized tests designed to assess human intelligence. A score derived from one of several standardized tests designed to assess human intelligence.
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. About 2% of the population has an IQ score lower than 69. Such a low IQ score often is hard to measure using a regular intelligence test. Very high IQ scores are also hard to determine accurately. This is because you need a lot of reference measurements to determine a specific score reliably. About 95.4% of the population will have an IQ score between 70 and 130, which is everyone within two standard deviations. Scores that are between 70 and 85 may be labeled below average, while scores between 115 and 130 could be labeled above average. A standard deviation in IQ points is 15, so 68.2% of the population will have scores between 85 and 115. This is labeled an average IQ, which is just a name for a group of people scoring around the average score. This name for a group helps make it easier to group test takers together An ‘ average IQ score’ or ‘normal IQ score’ can be defined as a score between 85 and 115. 68% of people score between 85 and 115. The Mensa qualifying IQ score is a score that puts you in the top 2% of the population in a bell curve like this one. The Mensa qualifying score is 130 or higher, as shown below. With standardized IQ tests, IQ tests are designed so that their scores have a ‘bell curve’ distribution in the general population with an average of 100. This curve has a peak in the middle where most people score and tapering ends where only a small percentage of people score. An IQ score of 115 means performance one standard deviation above the median, a score of 85 performance one standard deviation below the median, and so on. Lewis Terman and other early developers of IQ tests noticed that most child IQ scores come out to approximately the same number by either procedure. IQ classification is the practice by IQ test publishers of labeling IQ score ranges with (somewhat subjective) category names such as superior or average. There are several publishers of tests of cognitive abilities. An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores. A standard devation of 15 means 68% of the norm group has scored between 85 (100 – 15) and 115 (100 + 15). About 2% of the population has an IQ score lower than 69. Such a low IQ score often is hard to measure using a regular intelligence test. Very high IQ scores are also hard to determine accurately. This is because you need a lot of reference measurements to determine a specific score reliably. An intelligence quotient (IQ) is a score derived from one of several standardized tests designed to assess human intelligence. The abbreviation IQ was coined by the psychologist William Stern for the German term Intelligenz-quotient, his term for a scoring method for intelligence tests he advocated in a 1912 book. By this definition, approximately two-thirds of the population scores between IQ 85 and IQ 115, and about 5 percent of the population scores above 125. IQ scores have been shown to be associated with such factors as morbidity and mortality, parental social status, and, to a substantial degree, biological parental IQ. The abbreviation IQ was coined by the psychologist William Stern for the German term Intelligenz-quotient, his term for a scoring method for intelligence tests he advocated in a 1912 book. 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. IQ classification is the practice by IQ test publishers of labeling IQ score ranges with (somewhat subjective) category names such as superior or average. There are several publishers of tests of cognitive abilities. In this graph, you can see that 68% of the population has an IQ score between 85 and 115. Around 2% of the population has an IQ greater than 130 which is a ‘very superior’ intelligence or ‘gifted’ intelligence. This is the IQ score needed to become a member of Mensa. An IQ of 115 or more is considered a high IQ. Here is a table for what IQ scores mean: IQ tests are the most reliable and valid type of psychometric test that psychologists make use of. Score on an IQ test can be used to predict ability in a wide range of activities outside the classroom
https://www.123test.com/interpretation-of-an-iq-score/ http://study.com/academy/lesson/what-is-iq-tests-definition-quiz.html http://www.i3mindware.com/mensa-requirements https://en.wikipedia.org/wiki/IQ_classification https://www.123test.com/interpretation-of-an-iq-score/ https://en.wikipedia.org/wiki/Iq https://en.wikipedia.org/wiki/Iq https://en.wikipedia.org/wiki/IQ_classification http://www.i3mindware.com/5-iq-factors/general-intelligence
iq score definition