Which of the following appears to be the most responsible for ethnic differences in IQ?

Question

Quizplus · Accepted Answer

Research has shown that cultural disadvantages associated with a lower-class upbringing, including poor educational opportunities, lack of resources, and exposure to environmental toxins, can impact cognitive development and lead to lower IQ scores. While factors such as test bias and test giver/test taker rapport can also play a role, they are generally considered secondary to the effects of cultural disadvantage. The idea of genetic differences between ethnic groups as the primary cause of IQ differences is not backed up by scientific evidence and is widely considered to be a controversial and potentially harmful view.

Which of the Following Appears to Be the Most Responsible