What did Richard Herrnstein and Charles Murray conclude in their book The Bell Curve?
A. Differences in IQ contribute to a large extent to differences in education and income.
B. Heritability findings apply only within the group of people studied, not between groups.
C. Differences in IQ scores based on race-ethnicity are meaningless because race is mostly a social construct with little scientific support or biological foundation.
D. Racial-ethnic differences in IQ result from biases in IQ tests that favor people from certain cultural backgrounds over others.
Answer: A
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