A major problem with using the polygraph as a lie detector is ...

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A major problem with using the polygraph as a lie detector is that
 
  a. some research suggests that it can make mistakes.
  b. arousal cannot be measured with the polygraph.
  c. it measures only the vocal channel, ignoring all other channels.
  d. control questions do not evoke arousal in innocent people.

Question 2

According to social role theory, gender differences that arise from social roles provide a continuing basis for
 
  a. minimal groups.
  b. jigsaw classrooms.
  c. old-fashioned racism.
  d. gender stereotypes.

[Christopher]

Answer to Question 1

a

Answer to Question 2

d

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TYSM

[Viet Thy]

Gracias!