One team of investigators examined where extraverts and ...

[Anajune7]

One team of investigators examined where extraverts and introverts sat in the library. They based their predictions on which of the following notions?
 
  A. Extraverts enjoy people more than introverts do.
  B. Introverts are more likely to study in the library than extraverts.
  C. Extraverts and introverts have different levels of preferred arousal and different sensitivity to stimulation.
  D. Introverts are less spontaneous than extraverts.

Question 2

Research on the genetic heritability of extraversion-introversion has made use of
 
  A. brain electrical activity measures.
  B. the twin-study method.
  C. differences in sensitivity to stimulation.
  D. only twins that have been reared together (in the same environment).

[canderson530]

Answer to Question 1

C

Answer to Question 2

B