Intelligence quotient - Environment

An intelligence quotient or IQ is a score derived from a set of standardized tests developed to measure a person's cognitive abilities ("intelligence") in relation to their age group. An IQ test does not measure intelligence the way a ruler measures height (absolutely), but rather the way a race measures speed (relatively). For people living in the prevailing conditions of the developed world, IQ is highly heritable, and by adulthood the influence of family environment on IQ is undetectable. IQ test scores are correlated with measures of brain structure and function, as well as performance on ...

Including:

• Intelligence quotient - History
• Intelligence quotient - IQ score distribution
• Intelligence quotient - IQ and General Intelligence Factor
• Intelligence quotient - Genetics vs environment
• Intelligence quotient - Environment
• Intelligence quotient - Development
• Intelligence quotient - Mental retardation
• Intelligence quotient - IQ education and income
• Intelligence quotient - Brain size and IQ
• Intelligence quotient - The Flynn effect
• Intelligence quotient - IQ correlations
• Intelligence quotient - Sex and IQ
• Intelligence quotient - Race and IQ
• Intelligence quotient - Religiousness and IQ
• Intelligence quotient - Health and IQ
• Intelligence quotient - Economic development and IQ
• Intelligence quotient - Practical validity
• Intelligence quotient - Validity and g-loading of specific tests
• Intelligence quotient - Social construct?
• Intelligence quotient - The Mismeasure of Man
• Intelligence quotient - The view of the American Psychological Association
• Intelligence quotient - Improving IQ
• Intelligence quotient - Controversy
• Intelligence quotient - End material
• Intelligence quotient - External links
• Intelligence quotient - References

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The role of genes and environment (nature vs. nurture) in determining IQ is reviewed in Plomin et al. (2001, 2003). The degree to which genetic variation contributes to observed variation in a trait is measured by a statistic called heritability. Heritability scores range from 0 to 1, and can be interpreted as the percentage of variation (e.g. in IQ) that is due to variation in genes. Twins studies and adoption studies are commonly used to determine the heritability of a trait. Until recently heritability was mostly studied in childre ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

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The role of genes and environment (nature vs. nurture) in determining IQ is reviewed in Plomin et al. (2001, 2003). The degree to which genetic variation contributes to observed variation in a trait is measured by a statistic called heritability. Heritability scores range from 0 to 1, and can be interpreted as the percentage of variation (e.g. in IQ) that is due to variation in genes. Twins studies and adoption studies are commonly used to determine the heritability of a trait. Until recently heritability was mostly studied in childre ...

See also:

Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

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While a large amount of one's IQ is predetermined by genetic factors, the environment can play a role as well. IQ can be improved to a certain extent through reading and application. Improvement in diet and regular exercise can help certain cognitive functions, and getting a little extra sleep can help as well. Depression and stress reduce IQ somewhat, so removal of these factors might also help. Drugs designed to improve cognitive fu ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Improving IQ

Some maintain that IQ is a social construct invented by the privileged classes, used to maintain their privilege. Others maintain that intelligence, measured by IQ or g, reflects a real ability, is a useful tool in performing life tasks and has a biological reality. The social-construct and real-ability interpretations for IQ differences can be distinguished because they make opposite predictions about what would happen if people were given equal opportunities. The social explanation predicts that equal treatment will eliminate ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Social construct?

Evidence for the practical validity of IQ comes from examining the correlation between IQ scores and life outcomes. Research shows that intelligence plays an important role in many valued life outcomes. In addition to academic success, intelligence correlates with job performance (see below), socioeconomic advancement (e.g., level of education, occupation, and income), and "social pathology" (e.g., adult criminality, poverty, unemployment, dependence on welfare, children outside of marriage). Recent work has demonstrated links between ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Practical validity

Main article: Flynn effect Worldwide, IQ scores appear to be slowly rising, a trend known as the Flynn effect. However, tests are only renormalized occasionally to obtain mean scores of 100, for example WISC-R (1974), WISC-III (1991) and WISC-IV (2003). Hence it is difficult to compare IQ scores measured years apart. ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - The Flynn effect

Main article: brain size and intelligence Modern studies using MRI imaging have shown that brain size correlates with IQ by a factor of roughly .35 to .40. In 1991, Willerman et al. used data from 40 White American university students and reported a correlation coefficient of .35. Other studies done on samples of Caucasians show similar results, with Andreasen et al (1993) determining a correlation of .38, while Raz et al (1993) obtained a figure of .43 and Wickett et al (1994) obtained a figure of .40. The correlation b ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Brain size and IQ

Main article: Sex and intelligence Most IQ tests are designed so that the average IQs of males and females are equal. However, men tend to score their highest in the parts of the test that cover spatial and quantitative abilities, and women generally score their highest in the verbal sections. Some research has indicated that the variance in men's IQ scores is greater than the variance among women's, as seen in other cognitive test scores. This would mean that men are more likely ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Sex and IQ

Main article: Religiousness and intelligence Some studies claim a correlation between higher IQ, SAT scores, GPA and degree of religious belief. While most of the research indicates a negative correlation between IQ and religiosity [5]. ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

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Persons with a higher IQ have generally lower adult morbidity and mortality. This may be because they better avoid injury and take better care of their own health. It also decreases the risk of Post-Traumatic Stress Disorder, severe depression, and schizophrenia. On the other hand, it increases the risk of Obsessive Compulsive Disorder [6]. Research in Scotland has shown that a 15-point lower IQ meant people had a fifth less chance of seeing their 76th birthday, while those with a 30-point disadvantage were 37% less li ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Health and IQ

While IQ is sometimes treated as an end unto itself, scholarly work on IQ focuses to a large extent on IQ's validity, that is, the degree to which IQ predicts outcomes such as job performance, social pathologies, or academic achievement. Different IQ tests differ in their validity for various outcomes. Tests also differ in their g-loading, which is the degree to which the test score reflects general mental ability rather than a specific skill or "group factor" such as verbal ability, spatial visualization, or mathematical reaso ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - Online tests, Intelligence quotient - Distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - Sex and IQ, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ

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Alfred Binet and his colleague Theodore Simon created the Binet-Simon scale in 1905, which used testing to identify students who could benefit from extra help in school. Their assumption was that lower scores indicated the need for more teaching, not an inability to learn. This interpretation is still held by some modern experts. Notably, Binet himself made no claim that his test properly measured intelligence. He stated in his paper New Methods for the Diagnosis of the Intellectual Level of Subnormals that ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

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The Supreme Court of the United States has also validated the use of IQ results during the sentencing phase of some criminal proceedings. The Supreme Court case of Akins v. Virginia, decided June 20, 2002, [17] held that executions of mentally retarded criminals are "cruel and unusual punishments" prohibited by the Eighth Amendment. In Akins the court stated that "...[I]t appears that even among those States that regularly execute offenders and that have no prohibition with regard to the mentally retarded, only fiv ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Use of IQ in the United States legal system

While IQ is sometimes treated as an end unto itself, scholarly work on IQ focuses to a large extent on IQ's validity, that is, the degree to which IQ predicts outcomes such as job performance, social pathologies, or academic achievement. Different IQ tests differ in their validity for various outcomes. Tests also differ in their g-loading, which is the degree to which the test score reflects general mental ability rather than a specific skill or "group factor" such as verbal ability, spatial visualization, or mathematical reaso ...

See also:

Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Validity and g-loading of specific tests

Some maintain that IQ is a social construct invented by the privileged classes, used to maintain their privilege. Others maintain that intelligence, measured by IQ or g, reflects a real ability, is a useful tool in performing life tasks and has a biological reality. The social-construct and real-ability interpretations for IQ differences can be distinguished because they make opposite predictions about what would happen if people were given equal opportunities. The social explanation predicts that equal treatment will eliminate ...

See also:

Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Social construct?

While a large amount of one's IQ is predetermined by genetic factors, the environment can play a role as well. IQ can be improved to a certain extent through reading and application. Improvement in diet and regular exercise can help certain cognitive functions, and getting more sleep may help as well. Depression and stress reduce IQ somewhat, so removal of these factors might also help. Drugs designed to improve cognitive fu ...

See also:

Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Improving IQ

Evidence for the practical validity of IQ comes from examining the correlation between IQ scores and life outcomes. Research shows that intelligence plays an important role in many valued life outcomes. In addition to academic success, intelligence correlates with job performance (see below), socioeconomic advancement (e.g., level of education, occupation, and income), and "social pathology" (e.g., adult criminality, poverty, unemployment, dependence on welfare, children outside of marriage). Recent work has demonstrated links between ...

See also:

Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - Practical validity

Intelligence quotient - Race and IQ. Main article: Race and intelligence While the distributions of IQ scores among different racial-ethnic groups overlap considerably, groups differ in where their members cluster along the IQ scale. Some groups (e.g. East Asians and Jews) tend to cluster higher than whites, while other groups (e.g. blacks and Hispanics) tend to cluster lower than whites. Similar clustering occurs with related variables, such as school achievement, reaction time, and brain size. Man ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - IQ correlations

Main article: General intelligence factor Modern IQ tests produce scores for different areas (e.g., language fluency, three-dimensional thinking, etc.), with the summary score calculated from subtest scores. Individual subtest scores tend to correlate with one another, even when seemingly disparate in content. Analyses of an individual's scores on the subtests of a single IQ test or the scores from a variety of different IQ tests (e.g., Stanford-Binet, WISC-R, Raven's Progressive Matrices and others) will reveal that they all m ...

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Intelligence quotient, Intelligence quotient - History, Intelligence quotient - IQ score distribution, Intelligence quotient - IQ and General Intelligence Factor, Intelligence quotient - Genetics vs environment, Intelligence quotient - Environment, Intelligence quotient - Development, Intelligence quotient - Mental retardation, Intelligence quotient - IQ education and income, Intelligence quotient - Regression, Intelligence quotient - Brain size and IQ, Intelligence quotient - The Flynn effect, Intelligence quotient - IQ correlations, Intelligence quotient - Race and IQ, Intelligence quotient - Religiousness and IQ, Intelligence quotient - Health and IQ, Intelligence quotient - Economic development and IQ, Intelligence quotient - Practical validity, Intelligence quotient - Use of IQ in the United States legal system, Intelligence quotient - Validity and g-loading of specific tests, Intelligence quotient - Social construct?, Intelligence quotient - The Mismeasure of Man, Intelligence quotient - The view of the American Psychological Association, Intelligence quotient - Improving IQ, Intelligence quotient - The APA 1996 Intelligence Task Force Report, Intelligence quotient - Controversy, Intelligence quotient - End material, Intelligence quotient - External links, Intelligence quotient - References

Read more here: » Intelligence quotient: Encyclopedia II - Intelligence quotient - IQ and General Intelligence Factor