SanchoPanza wrote on Oct 12
th, 2008 at 1:48am:
Dr. Maschke,
You statement
Quote: That polygraph operators cannot detect the kinds of countermeasures described in Chapter 4 of The Lie Behind the Lie Detector is supported by peer-reviewed research cited, with full abstracts, therein.
May have been accurate over 10 years ago when the last research you cited was completed, but what in the world would make you think that no progress has been made since. Especially when you are well aware that research published since your book first came out convinced you that sphincter contraction was detectable to the point you began warning your readers not to try it.
It is not any published research that convinced me that the anal sphincter contraction used as a polygraph countermeasure might be detectable. To my knowledge, no such research has been published. Rather, the reason we no longer suggest the anal sphincter contraction as a countermeasure is that the claim that such can be detected with piezoelectric sensor pads seems plausible.
Quote:If you will look, you will find published studies as late as 2007 that countermeasures are detectable and that honest people who employ them actually lessen their chances of passing a test. Like I said before. If you had the information you would begin trying to figure out how to get around the detection methods. The information is out there if you will look for it, but I am not going to do your research for you especially since I believe you would make the information available to enemies of our country.
I wll not be chided, baited, tricked, or coerced into helping you help criminals in any way.
If studies showing that polygraphers can detect countermeasures have been
published, then by definition they're
public, and there is no harm in citing them. I do follow the polygraph literature, and have not seen a single study showing any ability of the polygraph community to detect the kinds of countermeasures described in
The Lie Behind the Lie Detector. The reason you won't cite any such article is not that you don't want to help criminals. You won't provide a citation because
you have lied. No such study has been published.
Quote:Kpminam is just the tip of the iceberg. You are either going to have to figure out a way to educate yourself or get out of the countermeasure business.
If I were presented with compelling evidence that the polygraph community has developed a reliable method of countermeasure detection, I would certainly not suggest that anyone use such to reduce the risk of a false positive outcome. But there is no such evidence. Which is why you cannot cite a single article to support the notion that the polygraph community can reliably detect countermeasures.