Within a group of people from the same race, some people will have higher IQs and some will have lower IQs. When you compare that group to a group from a different race, the average IQ of each group is nearly identical. In the first example, we examine __________ and in the second example, we examine _____________.

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In the first example, we are examining within-group heritability, meaning the differences in IQ within a group can be attributed to genetics and environmental factors within that group. In the second example, we are examining between-group heritability, meaning the differences in IQ between two different races can be attributed to genetic differences between those races. The nearly identical average IQs of each group suggest that the genetic differences between races do not significantly impact IQ.

Within a Group of People from the Same Race, Some