Briefly explain what a polygraph machine measures and how the resulting information is used to determine deception. Describe challenges to the results of the polygraph
What will be an ideal response?
A polygraph machine measures signs of physiological arousal such as blood pressure/heart rate, respiration, and skin conductivity. The results are interpreted, and inferences are made about the truthfulness of a person’s responses to questions posed. A person feeling nervous or afraid of the test itself may show emotions indicating such, whereas a person telling lies may learn how to control physiological responses. In both cases, the results may be unreliable. Because of the concerns of unreliability, polygraph tests are not admissible in a court of law.
You might also like to view...
Children who are withdrawn, fearful, moody, and lack independence tend to have parents who are:
a. permissive b. authoritative c. authoritarian d. indifferent
How is college choice related to attitudes about wanting to be independent from parents?
a. The majority of freshmen say they chose a college as far from home as possible. b. The majority of college freshmen say they chose a college that would allow them to live near home. c. College freshmen appear to differ in how much they want autonomy from parents as they begin college. d. The majority of freshmen go to school in a different state from where their parents live.