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 observed substantial and long-term increase in both fluid and crystallized intelligence test scores measured in many parts of the world over the 20th century. This phenomenon suggests that average IQ scores have been increasing over time, particularly in Western, industrialized nations.

Which of the Following Statements Best Describes the Flynn Effect