Quote from: nopoly4me on May 24, 2008, 09:26 AMIs the National Academy of Sciences report available without editing somewhere online???
Quote from: nopoly4me on Dec 13, 2007, 08:18 PMQuoteIn my opinion there is a real possibility that many innocent persons accused of crime would be unconcerned with what has been suggested to me are good control questions in comparison with the actual accusation. I have no doubt that some people do react as polygraph operators insist they must, but I am not convinced that this latter group of people would be an overwhelming proportion of our population.
George,
You made my point. Now read Offe and Offe and see that his suppositions aren't supported, and the NAS is slowly being shown to have been wrong in some of their speculations.
QuoteIn my opinion there is a real possibility that many innocent persons accused of crime would be unconcerned with what has been suggested to me are good control questions in comparison with the actual accusation. I have no doubt that some people do react as polygraph operators insist they must, but I am not convinced that this latter group of people would be an overwhelming proportion of our population.
QuoteBarry, I call attention to how little training is required to become a newly minted polygrapher because there is a widespread misperception that becoming a polygrapher requires a great deal of specialized training. It doesn't, and hence it is no surprise that there is no college-style textbook that teaches one how to conduct polygraph examinations.
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The book is hardly scholarly. It essentially says that the CQT makes no sense to him, so it can't work. That's not science,
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He (Lykken) also makes suppositions about polygraph that are wrong, but then again, he had no training in polygraph, so he wasn't an expert on the subject.
QuoteSome shcools also require students to read a lot of studies.
Quote from: nopoly4me on Dec 12, 2007, 07:19 PMQuoteThe best scholarly book on polygraphy is the late David T. Lykken's A Tremor in the Blood: Uses and Abuses of the Lie Detector (2nd edition, Plenum Trade, 1998).
The book is hardly scholarly. It essentially says that the CQT makes no sense to him, so it can't work. That's not science, and the much venerated NAS report disagreed with him in regard to single-issue tests. He also makes suppositions about polygraph that are wrong, but then again, he had no training in polygraph, so he wasn't an expert on the subject.
QuoteVerdict
The Control Question Test, widely regarded among polygraphers as their most refined technique, is the only lie detection method to have been seriously studied with respect to validity. As we have seen, some of these studies are defective or irrelevant; none of them are definitive. Because of the contamination resulting from reliance on polygraph-induced confessions as criteria of ground truth, the CQT's accuracy, especially in detecting guilty suspects, is overestimated by these studies to an unknown extent. As we shall see in Chapter 18, naive subjects can learn to beat the CQT with less than an hour's instruction, using covert countermeasures that experienced polygraphers cannot detect. The burden of proof, however, is (or should be) on the proponents of the method. Can they substantiate their claims of near-perfect accuracy? After listening to a week of testimony from critics of polygraphy and from such leading polygraphers as John Reid and Richard Arther, Justice Morand concluded:QuoteThe polygraph examiners had many opportunities to answer the problems and criticisms suggested by psychologists and physiologists. Unfortunately, their response was invariably that the criticisms were not valid because, in their experience, the test worked. I have come to the conclusion that I must accept the evidence of the psychologists and physiologists, which is consistent with both my common sense and my personal experience, that all individuals do not react in identical ways in a given situation, and that programming human responses is at best imperfect. In my opinion there is a real possibility that many innocent persons accused of crime would be unconcerned with what has been suggested to me are good control questions in comparison with the actual accusation. I have no doubt that some people do react as polygraph operators insist they must, but I am not convinced that this latter group of people would be an overwhelming proportion of our population.
QuoteQuoteAfter all, the longest polygraph course is only 14 weeks long, and 8 weeks is more typical.
George, you keep throwing this out in what appears to be an attempt to demean polygraph examiners and polygraph schools.
"Only 14 weeks"? That's not exactly true. First, most schools are 10 weeks long (academic portion). Some do eight in-residence with a two-week project of some sort to get to 10 weeks. After the academic portion, most require an internship of some type, making polygraph school about a year long in total.
Let's get back to that "mere" 8 to 14 weeks. Polygraph school consists of five to six eight-hour days. That's like taking 8 to 14 back-to-back j-terms (each a 40-hour 3-credit course). The 14-week course to which you refer is DACA's, and students leave there with a graduate certificate (15 credits!) from an accredited school - credits which transfer to another regionally accredited school and can be applied towards a graduate degree (in forensic psychology).
The school I attended was 12 weeks long, and I earned 28 undergraduate credits (from a regionally accredited college). My internship (which made school about a year long) was worth another five credits; although, I don't know if they ever got applied to my transcript.
The bottom line: if we spread my classes out like they did when most of us attended college, it would have taken a full academic year to complete - and that's just the academic portion. So, yes, we cram about a year's worth of training in a short period of time, but then that's all we do during that time is learn and study.
QuoteThe best scholarly book on polygraphy is the late David T. Lykken's A Tremor in the Blood: Uses and Abuses of the Lie Detector (2nd edition, Plenum Trade, 1998).
QuoteAfter all, the longest polygraph course is only 14 weeks long, and 8 weeks is more typical.