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Citation for for IQ test results == intelligence?

by kozd 6y ago

wongarsu 6y ago
While not perfect, they are the best metric we currently have. Wikipedia says "In psychology, human intelligence is commonly assessed by IQ scores that are determined by IQ tests. However, there are critics of IQ tests who, while they do not dispute the stability of IQ test scores, or the fact that they predict certain forms of achievement rather effectively, do on the other hand argue that to base a concept of intelligence on IQ test scores alone is to ignore many important aspects of mental ability. On the other hand, Linda S. Gottfredson (2006) has argued that the results of thousands of studies support the importance of IQ for school and job performance. She says that IQ also predicts or correlates with numerous other life outcomes. In contrast, empirical support for non-g intelligences is lacking or very poor." https://en.wikipedia.org/wiki/Human_intelligence#Relevance_of_IQ_tests https://en.wikipedia.org/wiki/Human_intelligence#Relevance_o...
- stefco_ 6y ago
  > IQ also predicts or correlates with numerous other life outcomes. If we hire people based on IQ scores/things that correlate with IQ scores, we should not be surprised if high IQ leads to better outcomes. correlation != causation
  - btilly 6y ago
    We have evidence of causation here. Research during the 1960s shows that IQ tests do a better job of predicting future job performance than other measures, such as interviews. As a result, many companies began to use IQ tests for hiring. This ended with https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co. https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co.. The fact that IQ tests resulted in hiring whites at a higher rate than blacks was deemed a violation of the Civil Rights Act and so the practice was banned. The correlation remains true, but it is illegal to hire based on IQ.
- kozd 6y ago
  Do IQ tests control for home life stability/quality, parental and generational wealth/education, school quality, other forms of hardship?
  - wongarsu 6y ago
    No, IQ tests are sheets of paper full of questions like "complete this two-dimensional sequence of shapes", "hand = finger, foot = ?", etc. that get scored based on your answers. Studies on IQ tests however do control for the factors you named, at least if they are good studies.
freen 6y ago
More importantly, the IQ test was created specifically as a way to validate racism. Stanford psychologist Lewis Terman’s IQ test, the standard upon which our current tests are based, was meant to show “enormously significant racial differences in general intelligence, differences which cannot be wiped out by any scheme of mental culture.” The Measurement of Intelligence 1016

Citation for for IQ test results == intelligence?

by kozd 6y ago

Citation for for IQ test results == intelligence?

While not perfect, they are the best metric we currently have. Wikipedia says "In psychology, human intelligence is commonly assessed by IQ scores that are determined by IQ tests. However, there are critics of IQ tests who, while they do not dispute the stability of IQ test scores, or the fact that they predict certain forms of achievement rather effectively, do on the other hand argue that to base a concept of intelligence on IQ test scores alone is to ignore many important aspects of mental ability. On the other hand, Linda S. Gottfredson (2006) has argued that the results of thousands of studies support the importance of IQ for school and job performance. She says that IQ also predicts or correlates with numerous other life outcomes. In contrast, empirical support for non-g intelligences is lacking or very poor." https://en.wikipedia.org/wiki/Human_intelligence#Relevance_of_IQ_tests https://en.wikipedia.org/wiki/Human_intelligence#Relevance_o...

stefco_ 6y ago
> IQ also predicts or correlates with numerous other life outcomes. If we hire people based on IQ scores/things that correlate with IQ scores, we should not be surprised if high IQ leads to better outcomes. correlation != causation
- btilly 6y ago
  We have evidence of causation here. Research during the 1960s shows that IQ tests do a better job of predicting future job performance than other measures, such as interviews. As a result, many companies began to use IQ tests for hiring. This ended with https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co. https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co.. The fact that IQ tests resulted in hiring whites at a higher rate than blacks was deemed a violation of the Civil Rights Act and so the practice was banned. The correlation remains true, but it is illegal to hire based on IQ.
kozd 6y ago
Do IQ tests control for home life stability/quality, parental and generational wealth/education, school quality, other forms of hardship?
- wongarsu 6y ago
  No, IQ tests are sheets of paper full of questions like "complete this two-dimensional sequence of shapes", "hand = finger, foot = ?", etc. that get scored based on your answers. Studies on IQ tests however do control for the factors you named, at least if they are good studies.

freen 6y ago

More importantly, the IQ test was created specifically as a way to validate racism. Stanford psychologist Lewis Terman’s IQ test, the standard upon which our current tests are based, was meant to show “enormously significant racial differences in general intelligence, differences which cannot be wiped out by any scheme of mental culture.” The Measurement of Intelligence 1016