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Topic summary

Posted by George Maschke (Guest)
 - Nov 20, 2000, 04:27 PM 

The Zone Comparison "Test" (ZCT) is one of the most commonly-used 
polygraph formats, but is not addressed in the 1st electronic 
edition of The Lie Behind the Lie Detector. It is a form of 
"Control" Question "Test" and is considered a single-issue "test" 
as opposed to the Modified General Question "Test" (regarding 
which, see Appendix A of of The Lie Behind the Lie Detector).

In a polygraph dragnet to find out who leaked information to the 
press, I expect that a variant of the ZCT would be used. 

The following information on two varieties of the ZCT 
is extracted from chapter 11 of James Allen Matte's 
Forensic Psychophysiology Using the Polygraph. 
Other versions also exist.

DoDPI Bi-Spot Zone Comparison Test Structure.

l. Irrelevant  Is today Monday?

2. Sacrifice Relevant  Regarding the incident you reported, 
   do you intend to answer truthfully each question about that?

3. Symptomatic  Are you completely convinced that I will not ask 
   you a question on this test that has not already been reviewed?

4. Non-Current Exclusive Control  Prior to 1993, did you ever lie 
   to anyone in a position of authority?

5. Relevant  Did you lie about that man forcing you to have sexual 
   intercourse with him?

6. Non-Current Exclusive Control  Prior to this year, did you ever 
   lie about something you are ashamed of?

7. Relevant  Did you lie about that man forcing you to have sexual 
   intercourse with him in his apartment?

8. Non-Current Exclusive Control  Prior to 1990, did you ever lie 
   to get out of trouble?

9. Symptomatic  Is there something else you are afraid I will ask 
   you a question about, even though I have told you I would not?



Utah Zone Comparison Technique

 1. Irrelevant

 2. Sacrifice Relevant

 3. Symptomatic

 4. Control

 5. Relevant

 6. Control

 7. Relevant

 8. Irrelevant

 9. Control

10. Relevant

Matte notes regarding the Utah technique that "at all times 
relevant test questions responses at each (R) position are 
compared only with the responses to the previous control 
question position..."

Persons using polygraph countermeasures to protect against a 
false positive outcome should not bother memorizing question 
orders, but should learn to recognize "control" questions on 
the fly. See chapter 3 of The Lie Behind the Lie Detector for 
details on how to recognize "control" questions.




Posted by George Maschke (Guest)
 - Nov 17, 2000, 01:15 PM 

In his article, "The Zone Comparison Test," Polygraph, Vol. 
27 (1998), No. 2, pp. 108-122, former National Security 
Administration (NSA) polygraph program director Norman Ansley 
provides the question sequence for the Department of Defense 
Polygraph Institute's version of the Zone Comparison "Test." 
The following citation is from p. 118:

       Zone Comparison Test Question Sequence

  Department of Defense Polygraph Institute 1991

1.  Irrelevant. Are the lights on in this room? Yes.

2.  Sacrifice Relevant. Regarding that stolen money, do you 
    intend to answer truthfully each question about that? 
    Yes.

3.  Symptomatic. Are you completely convinced that I will not 
    ask you a question on this test that has not already been 
    reviewed? Yes.

4.  Control. Prior to 1990, did you ever steal from someone 
    who trusted you? No.

5.  Strong relevant. Did you steal any of that money? No.

6.  Control. Prior to coming to Alabama, did you ever steal 
    anything? No.

7.  Relevant. Did you steal any of that money from the 
    footlocker? No.

8.  Symptomatic. Is there something else you are afraid I 
    will ask you a question about, even though I have told 
    you I would not? No.

9.  Control. Prior to this year, did you ever steal anything 
    from an employer? No.

10.  Weak Relevant. Do you know where any of that stolen 
     money is now? No.

                       SKY - Optional

11.  Suspect. Do you suspect anyone in particular of  
     stealing any of that money? No.

12.  Knowledge. Do you know for sure who stole any of that 
     money? No.

13.  You. Did you steal any of that money? No.