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Unformatted text preview: ure) Yep…a
Yep…a good chunk of it is. Heritability
of IQ scores is .60 to .80 in adults,
(60% to 80% of differences in
IQ are due to genetics) IQ scores of
Identical Twins Raised in Different Environments
are more highly correlated (.72) than scores of
Fraternal Twins Raised Together (.62)
(Contribution of genetics overshadows the
contribution of shared environment) IQ scores of
are more correlated (.47) than IQ scores of
Adopted, but Unrelated Siblings (.30)
(Again, the contribution of genetics beats the
contribution of shared environment.) 1.
5. Prenatal Care
Nutrition during childhood.
Exposure to toxins (e.g., lead paint)
Degree of mental stimulation in childhood
(all these things are associated with poverty) WHAT DO IQ TESTS MEASURE?
INNATE MENTAL ABILITY
THE QUALITY OF ONE’S EXPERIENCES WHAT DO IQ TESTS MEASURE?
Culturally-Biased Questions are only part of the problem.
IQ Scores measure exposure to environments that
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- Fall '13