Is a technique used by polygraph examiners. used to convince the examinees that the test is infallible. An examinee chooses a card from a deck of playing cards, and the examiner asks questions and the examinee's physiological readings to know which of the card was chosen by examinee.
STIM TEST: "Stim tests are similar to question answer tests done by examiners. Playing cards are used in this test."