Understanding IQ
"Unraveling the Mystery-A Comprehensive Guide to Understanding IQ"
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 Score Interpretation
IQ is a type of standard score that indicates how far above or below an individual stands in mental ability compared to their peer group. The peer group score is an IQ of 100, obtained by applying the same test to a large number of people from all socio-economic strata of society and taking the average . The average IQ on many tests is 100, and 68% of scores lie between 85 and 115. A low IQ score is anything 70 and below, while anything over 140 is considered a genius IQ score. For context, it is estimated that Albert Einstein had a score of around 160 .
IQ Testing and Measurement
IQ testing was formally named in 1912 by a psychologist named William Stern. The idea is that a person's average IQ score accurately represents their mental age in conjunction with their actual age. IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100 . IQ tests measure mental ability to reason and solve problems, reflecting how well an individual did on a specific test compared to other people of their age group .
IQ Classification
IQ classification varies between IQ test publishers, and the categories of IQ vary as the category labels for IQ score ranges are specific to each brand of test. The test publishers do not have a uniform practice of labeling IQ score ranges, nor do they have a consistent practice of dividing up IQ score ranges into categories of the same size or with the same boundary scores .
Conclusion
IQ is a measure of an individual's ability to reason and solve problems, and it is used to express the relative intelligence of a person. It is important to note that while IQ can predict things such as academic success, it is not necessarily a guarantee of life success, as sometimes people with very high IQs do not fare well in life, while those with average IQs may thrive .
