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IQ classification is the practice by IQ test publishers of labeling IQ score ranges with category names such as "superior" or "average".. There are several publishers of tests of cognitive abilities. No two publishers use exactly the same classification labels, which have changed from time to time since the beginning of intelligence testing in the early twentieth century. IQ sc...


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.


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). In other words, 68% of the norm group has a score ...


An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. The abbreviation "IQ" was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in a 1912 book. ...


IQ scores are predominantly used for educational placement, assessment of intellectual disability, and also for evaluating job applicants. Check out the below IQ chart and find out how smart you are based on your score range. The IQ score table provides the category type and typical ability for each score range in detail.


IQ testing can help determine your level of intelligence relative to others in your age group. "IQ" is an acronym for "intelligence quotient." There are several standardized IQ tests available.


The WISC-R featured the same subtests, but updated the age range for the children it tested from a range of 5-15 to 6-16. The WISC-III was published in 1991 and added a subtest for processing speed. The WISC-III also introduced new index scores to represent specific areas of intelligence, (which have since been updated):


IQ, or intelligence quotient, is a measure of your ability to reason and solve problems. It essentially reflects how well you did on a specific test as compared to other people of your age group. While tests may vary, the average IQ on many tests is 100, and 68 percent of scores lie somewhere between 85 and 115.


Determining a child’s IQ, intelligence quotient, can be challenging. Once you understand the basics of IQ testing and what the normal range is for children, you can better determine if there are ...


IQ Percentile and Rarity Chart. These are IQs, their percentiles, and rarity on a 15 SD (e.g. Wechsler) and 16 SD (e.g. Stanford-Binet) scale. They were calculated using the NORMDIST function in Excel. The number of decimal places for the rarity was varied in the hope it might be useful.