Which of the following statements best describes the Flynn Effect?
A) A rapid rise in IQ has occurred in Western, industrialized nations during the last 50 years.
B) Differences in adult intelligence are roughly 50 percent hereditary.
C) The IQs of low SES children are more dramatically influenced by environmental factors than the IQs of high SES children.
D) Children reared by the same mother resemble her in IQ to the same degree whether the child is a biological or adopted child.

Question

Quizplus · Accepted Answer

The Flynn Effect refers to the steady increase in IQ scores observed in many Western countries during the 20th century, particularly in the latter half. This increase has occurred largely in the general population and not just in specific groups, leading to the conclusion that environmental factors such as education and nutrition may play a role.

Which of the Following Statements Best Describes the Flynn Effect