Turkheimer and colleagues’ study of IQ showed thatThe heritability of IQ is high.The heritability of IQ depends on the environment.Achievement is highly heritable regardless of the environment.Linkage analysis is a sound research method.
the heritability of IQ depends on the environment.
Turkheimer and colleagues’ study on IQ demonstrated that the heritability of IQ depends on the environment. This study focused on the interaction between genes and the environment and concluded that the heritability of IQ is not fixed, but it varies depending on the environment. This means that while genes play a significant role in determining IQ, environmental factors such as family background, socioeconomic status, and education can also impact IQ.
The study did not find evidence to support the claim that the heritability of IQ is uniformly high, regardless of the environment. This is because the environment can modify the expression of genes that influence IQ, and therefore, influence the heritability of IQ. This finding suggests that it is important to consider not only genetics but also the environment when evaluating IQ.
Regarding the third option, the study did not examine the heritability of achievement, so it cannot comment on its heritability.
Finally, the study did not evaluate linkage analysis as a research method, so it is irrelevant to discuss it in the context of this study. Linkage analysis is a method of studying genetic inheritance patterns in families, and it is widely used in genetic research.
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