Suppose that researchers estimate that broad-sense heritability of IQ in Sweden is 0.8. Which of the following conclusions is valid, assuming that the estimate is accurate?
A) Most variance for IQ in Sweden is due to total genetic variance.
B) In Sweden, the environment does not play a large role in determining the IQ of individuals.
C) Enriching the environment of poor children in Sweden would not lead to a big improvement on IQ tests.
D) Broad-sense heritability of IQ in the United States is probably also close to 0.8.
E) If another country has a lower broad-sense heritability for IQ, then this difference must be genetically based.

Question

Quizplus · Accepted Answer

Broad-sense heritability of 0.8 indicates that 80% of the variance in IQ is due to genetic variance in the population studied, which is Sweden in this case.

Suppose That Researchers Estimate That Broad-Sense Heritability of IQ in Sweden