Question

The Flynn effect demonstrates that average IQ scores have risen over the last century. What does this primarily show?

Options

• Human genes have become more intelligent.

• Environmental improvements in education, nutrition, and living conditions have enhanced intelligence.

• Heredity is more important than environment.

• Intelligence cannot be measured accurately.

Answer 1

Environmental improvements in education, nutrition, and living conditions have enhanced intelligence.

Explanation:

The Flynn effect shows that environmental factors such as better education, improved nutrition, and healthier living conditions have raised average IQ scores, not genetic changes.