A polygraph (lie detector) works by: ___________?
Correct answer: A. Monitoring physiological indices of autonomic arousal.
- A. Monitoring physiological indices of autonomic arousal.
- B. Directly assessing the truthfulness of a person's statements.
- C. Monitoring the person's facial expressions.
- D. All of the above.
Explanation
A polygraph records autonomic arousal indicators such as heart rate, blood pressure, respiration, and sweating. These reactions do not directly prove whether a statement is truthful, and facial-expression monitoring is not its defining method.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Research Methods and Statistics
263 free Research Methods and Statistics MCQs from Psychology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Psychology questions like this
Psychology is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Research Methods and Statistics questions
Although newspapers reported that a murder victim had been stabbed with a knife, two police investigators knew that the actual murder weapon was a letter openor. While carefully monitoring the changes in heart and perspiration level of a prime suspect, the investigators asked him if he typically used a letter opener on his mail. The investigators were making use of the:
Why is the difficult to evaluate the effectiveness of psychotherapeutic treatments?
If you score at the 75th percentile on a standardize test, it means that:
The, "Is your address(person's address)?" asked during the administration of a lie detector test, is a(n)______question.
When a polygraph operator asks a subject, "Have you ever lied to your parents?" her or she is using
Klaun is a psychology graduate student who wants to determine whether electronvulsive for schizoprenia. To combine the results of numerous published studies on this issue, klaus should use a technique called: