Dr. de Vries,
You write:
Quote:Whenever you decide that a particular technology is not to your liking, no amount of persuasion or research is going to change the way you view things.
The only person regarding whom you can really know whether the above characterization is true is yourself...
Quote:I have been working with the LVA technology for some time, and I can tell you that in very simple terms; it works.
What evidence led you to the conclusion that it "works?"
Quote:I know that you do not wish to hear this kind of stuff. I also realize that you would prefer to to have me malign the technology as possible because that is your venue. That, too, is okay. As long as we understand one another.
I actually would like to hear the evidence. Dr. Parton has acknowledged in an e-mail to me that there are no double-blind studies of LVA. Several of Robert L. Parks's
"Seven Warning Signs of Bogus Science" are evident in the way LVA is being marketed. Thus, I think you should be able to appreciate why I and others might be skeptical of V's claims regarding Layered Voice Analysis (LVA). Extraodinary claims require extraordinary evidence.
V's key claim regarding LVA that I find to be extraordinary is the claim that LVA can detect deception with an accuracy rate over 90%. Where is the proof? The U.S. National Academy of Sciences states in its report,
The Polygraph and Lie Detection, "Although proponents of voice stress analysis claim high levels of accuracy, empirical research on the validity of the technique has been far from encouraging."
V's website states (on the
"How it Works" page), "In the late 1990's that all changed with the advent of Layered Voice Analysis. Voice analysis was enhanced by the rapid advancements in personal computer technology. New research was commissioned. When mated with digital sound technology, the results were astounding. Not only were accuracy standards raised above 90% level, but other unexpected results emerged." Where can I find a copy of any report(s) on the research that was commissioned?
The same page on the V website also asserts that, "Mapping the DNA of thought and emotion is now being achieved." Could you refer me to any published research on this purported mapping?
Quote:Your job is to totally discredit any technology regardless of its utility.
No, Dr. de Vries. It is not our job to discredit any technology. If those claiming LVA can detect deception with an accuracy rate of >90% wish to be believed, then it is
their job to prove such claims.
Quote:Yes, there are blind studies with LVA, CVSA, Polygraph, etc. I just do not think that any of these studies would be of interest to you since your raison d'etre is "bashing" of all deception detection technologies regardless of their validity.
Dr. Albert ?de Vries
Again, Dr. Parton wrote to me that
there are no double-blind studies of LVA. Perhaps he is mistaken. Would you please provide citations for the "blind studies with LVA..." to which you refer? Have any such studies been published in refereed scientific journals?