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Polygraph and CVSA Forums >> Polygraph Procedure >> The Scientific Validity of Polygraph
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Message started by J.B. McCloughan on Jan 20th, 2002 at 6:45am

Title: Re: The Scientific Validity of Polygraph
Post by Drew Richardson on Mar 8th, 2002 at 4:16pm
J.B.


Quote:
...although one may control for some given variants in a particular setting, there is always the chance of uncontrollable variants...


True, but irrelevant to the fact the probable-lie control question test (CQT) polygraphy has no, nada, zilch scientific control on ANY day, uncontrollable variants notwithstanding.  This is because the emotional content of relevant/control question pairings is NEVER known apriori for a given examinee with a given examination.  This makes any conclusions drawn from physiological recordings meaningless and sheer speculation on each and every occasion/outing.



Quote:
...I will admit I am not a toxicologist.  My knowledge of this discipline is extremely limited in comparison to yours.  I am not arguing that toxicology is invalid nor is that the subject...


Again, all likely true, and although containing an appreciated and flattering admission, all irrelevant to the issue at hand...

The theoretical nature of control/comparison questions (emotional content/affect in relationship to paired relevant question material) can not be verified on ANY and again I repeat ANY given occasion, making their use, if not without purpose, at least providing no scientific control in any formal and recognized context.

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