Twin Questions - AP Psychology

Based on the bar graph above, which of the following conclusions is most accurate?

• Genes alone determine intelligence.

• The environment alone determines intelligence.

• Identical twins are more intelligent than fraternal twins.

• The more genetically related people are, the more similar their intelligence scores.

The data in the graph display the similarity rates for identical and fraternal twins who share a diagnosis of major depressive disorder. According to the graph, the explanation for depressive disorders is most consistent with which of the following psychological approaches?

• Psychodynamic

• Cognitive

• Biological

• Sociocultural

The data in the graph display the similarity rates for identical and fraternal twins who share a diagnosis of major depressive disorder. Which of the following is the best evidence that environment plays a role in intelligence?

• Identical twins reared together are more similar than identical twins reared apart.

• Identical twins reared apart are more similar than fraternal twins reared together.

• Fraternal twins reared together are more similar than unrelated individuals reared together.

• Unrelated individuals reared together are less similar than siblings reared together.

Which of the following research findings supports a strong biological basis for behavior?

• Presenting a loud sound just before presenting a neutral stimulus eventually produces fear of the neutral stimulus.

• Including misinformation in a question about an event decreases the accuracy of memory for the event.

• Observing an aggressive model leads to aggressive behavior by the observer.

• Identical twins who are reared apart have similar levels of intelligence.

Which of the following findings provides the strongest evidence for the role of heredity in intellectual performance?

• Identical twins reared together have more similar intelligence test scores than do identical twins reared apart.

• Identical twins reared apart have more similar intelligence test scores than do fraternal twins reared together.

• Nontwin siblings reared together have more similar intelligence scores than do nontwin siblings reared apart.

• Fraternal twins reared together have more similar intelligence test scores than do fraternal twins reared apart.