retcopper wrote on Apr 3
rd, 2006 at 6:21pm:
George:
I wouldn't' call oversimplification a form of lying and exaggeration is sometimes used to clarify a point to someone.
1. I received many weeks of intensve training regarding the ANS and other physiologic functions as they pertain to the polygrpah. For obvious reasons I am not going to spend hours explaining these systems to an examinee when I can get my point across by "simplifying" the process to the examinee. This means I'm lying?
DoDPI trainees get a roughly two-week cram-course on physiology. This hardly qualifies them to lead a discussion of the autonomic nervous system. And if they follow the DoDPI script laid out in the
Test for Espionage and Sabotage Administrative Guidelines, then as Dr. Richardson mentioned, they do indeed engage in gross oversimplification and error:
Quote:4. Explain how the polygraph instrument works and the F3 theory of deception detection--be very brief. Use the following example as a guideline.
You may be a little nervous, especially if you have not had a PDD examination before. This is expected and is quite normal. To help put you at ease, I will explain what the instrument is and how it works. The polygraph is a diagnostic tool that is used to determine if a person is telling the truth. It simply records physiological changes that take place in your body when you are asked questions. Today, changes in your respiration, sweat gland activity, and blood pressure will be recorded. Please notice the two rubber tubes on the desk. One will be placed across your chest and the other will be placed around your abdominal area. They will be used to record your breathing. There are two metal finger plates next to the rubber tubes. These plates will be attached to two of your fingers and will record your sweat gland activity. Finally, there is a blood pressure cuff on the desk. It is the same type of cuff a doctor uses to measure blood pressure. It will be placed on your arm and will monitor changes in your cardiovascular activity.
These physiological changes are a result of an automatic response system in your body. It is a response system over which you have no control. For example, visualize yourself walking down a dark
alley late at night. Suddenly you hear a loud noise. You will instantaneously decide either to remain where you are and investigate the source of the noise, or to flee the area, sensing danger to your well being. Regardless of the choice you make, your body automatically adjusts itself to meet the needs of the situation; your heart may beat faster, your breathing may change and you may break out in a cold sweat.
When you were growing up, if you are like most people, you were raised to know the difference between right and wrong. Quite probably, all of the adults you came in contact with--your parents, grandparents, relatives, teachers, church officials--taught you that lying, cheating, and stealing were wrong. Ever since you were a young child, you have been programmed to know that lying is wrong. Think about the first time you lied and got caught. Remember how your body felt during that confrontation. Your heart may have been racing or you may have been sweating. However, the responses were automatic; your body adjusted to the stress of the situation.
People are not always 100% honest. Sometimes it is kinder and more socially acceptable to lie than to be honest - such as telling someone you like their clothes when you really think the clothes are awful. It is important for you to understand that even though a lie might be socially acceptable or only a small lie, or a lie by omission, your body still responds. The recording on the polygraph will show only the physiological responses. It cannot know what kind of lie you are telling. Therefore, it is extremely important that you be totally honest to those questions concerning this project.
But, as pointed out in
The Lie Behind the Lie Detector (at p. 88 of the 4th edition):
Quote:The above explanation is carefully designed to instill fear. But like the Wizard of Oz, the polygrapher is making believe. His explanation is deliberately false and misleading: telling a lie may or may not result in physiological changes measurable by the polygraph. When the polygrapher says, “It is important for you to understand that even though a lie might be socially acceptable or only a small lie, or a lie by omission, your body still responds,” he really means, “It is important for me that you believe this to be true.”
You also write:
Quote:2. I am usually correct in my stim tests. If I am not , does that make me a liar.
The deceptions associated with the stim test are explained at pp. 89-92 of the 4th edition of
The Lie Behind the Lie Detector. Quote:3. I am up front with the examinee about the Irr Qs.
Then you're not following DoDPI protocol. Again, from the
Test for Espionage and Sabotage Administration Guidelines:
Quote: 10. Explain and review the irrelevant questions. Use the following explanation example as a guideline.
The final diagnostic questions you may hear are ones you will answer truthfully so that I can see how you are responding when you tell the truth. It will be obvious that you are telling the truth....
Of course, the irrelevant questions are not scored at all. The explanation that they are so that the examiner "can see how you are responding when you tell the truth" is a lie.
Quote:4. I tell the examinee I compare the control question to the relevant question. Doe that make me a liar?
No. But if you follow standard polygraph practice and don't tell the examinee that you actually expect his answers to probable-lie "control" questions to be less than completely honest, that does make you dishonest.
Quote:5. I am there to give him a test. I am not there to tell him about techniques and which one is statistically better.
If you tell examinees that any form of polygraph screening has any validity at all, you are not being honest.
Quote:6. I will coordinate my questions about the crime or subject according to the reactions to my questions. I wouldn't call that scheming or whatever.
Come now. Post-test interrogation is where some of the biggest whoppers are told. In the context of a criminal interrogation, a certain amount of examiner deception may well be justified. But I don't think it's appropriate in the hiring process or in the workplace.
The kinds of "themes" that Dr. Richardson mentioned are to be found in DoDPI's Interview & Interrogation handbook:
http://antipolygraph.org/documents/dodpi-interrogation.pdf Quote:7. I disagree this statement but I wouldn't consider it lying if i did tell the examinee this, because I believe in the process. Moot point anyway because I wouldn't I say this to an examinee.
If you genuinely believe that polygraphy merits consideration as a scientific discipline, then I agree you would not be lying when claiming so. But you would be mistaken, for reasons explained by Dr. William G. Iacono in his article, "Forensic 'Lie Detection': Procedures Without Scientific Basis":
http://antipolygraph.org/articles/article-018.shtml