The results in the table below are from experiments conducted by researchers Charles R. Honts (Boise State University) and Gordon H. Barland (Department of Defense Polygraph Institute). In each case, it was known whether the subject lied, so the table indicates when the polygraph test was correct.

a. Based on the test results, how many subjects appeared to be lying? Of these, how many were actually lying and how many were telling the truth? What percentage of those who appear to be lying were not actually lying?

b. Based on the test results, how many subjects appeared to be telling the truth? Of those, how many were actually telling the truth? What percentage of those who appeared to be telling the truth are actually truthful?

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Did the Subject Actually Lie? No Yes Polygraph test indicated that the subject lied. Polygraph test indicated that the subject did not lie. 15 42 32 9