People who are genetically unrelated but are raised in the same home have IQ scores that are more similar than those of genetically unrelated people raised in different homes.

Question

Quizplus · Accepted Answer

This phenomenon is known as the "shared environmental effect" on IQ scores. It suggests that the environment in which individuals are raised (such as their family's socioeconomic status, parenting style, education level, and access to resources) can have an impact on their cognitive development and performance on IQ tests. However, it is important to note that genetics also play a significant role in IQ scores, and the influence of environmental factors may decrease as individuals age and become more independent from their family context.

People Who Are Genetically Unrelated but Are Raised in the Same