One Advantage of Using Laboratory Studies to Test the Accuracy

Multiple Choice

One advantage of using laboratory studies to test the accuracy of the polygraph is that __________; one disadvantage is __________ as compared to field studies.

A) you have better control over the variables; ground truth cannot be established
B) ground truth is known; the motivational level of the subject
C) you can randomly assign subjects to innocent and guilty conditions; you have more control over the variables
D) university students are used; the motivational level of the subject
E) you can randomly assign subjects to innocent and guilty conditions; it is unethical