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A forum for free and open discussion of polygraph-related topics
Posted by 1904
- Oct 30, 2007, 05:56 AMQuote from: Barry_C on Oct 27, 2007, 06:05 PMQuote...may easily be manipulated through the use of simple countermeasures that polygraphers have no demonstrated ability to detect."
George, are you saying "may" as in "maybe" or as "can"? There's a big difference. Keep in mind the scientific studies on the topic of CMs show that people "may" be able to use them effectively only if they have hands-on training. Reading a book won't help, which you can read all about in the other active post here.
Barry C is attempting to hit 2 birds with one stone.
There were 2 separate discussions iro CM's.
One was that reading TLBTLD would assist subjects to understand the pg process and not fail due to
lack of basic knowledge.
The other was that persons who have a good working knowledge of the pg and the test process, are
far likelier to pass the test regardless. (whether they concealed past behaviours or not )
Posted by Barry_C
- Oct 27, 2007, 06:05 PMQuote...may easily be manipulated through the use of simple countermeasures that polygraphers have no demonstrated ability to detect."
George, are you saying "may" as in "maybe" or as "can"? There's a big difference. Keep in mind the scientific studies on the topic of CMs show that people "may" be able to use them effectively only if they have hands-on training. Reading a book won't help, which you can read all about in the other active post here. (I'm too lazy to add the link.)
Were all these questions asked in a single test?
Posted by George W. Maschke
- Oct 27, 2007, 04:30 AMskyking,
Polygraph "testing" is based on the simplistic assumption that deceptive persons will react more strongly to relevant questions than to so-called "control" questions (which are intentionally vague) and that conversely, truthful persons will react more strongly to the "control" questions. In the question list you posted, those with an "R" in the alphanumerical designation are the relevant questions, and those with a "C" are the "control" questions.
As you'll find explained in The Lie Behind the Lie Detector (1 mb PDF) polygraph procedure has no scientific basis, is inherently biased against the truthful, and yet may easily be manipulated through the use of simple countermeasures that polygraphers have no demonstrated ability to detect. The results are not to be relied upon.
Polygraph "testing" is based on the simplistic assumption that deceptive persons will react more strongly to relevant questions than to so-called "control" questions (which are intentionally vague) and that conversely, truthful persons will react more strongly to the "control" questions. In the question list you posted, those with an "R" in the alphanumerical designation are the relevant questions, and those with a "C" are the "control" questions.
As you'll find explained in The Lie Behind the Lie Detector (1 mb PDF) polygraph procedure has no scientific basis, is inherently biased against the truthful, and yet may easily be manipulated through the use of simple countermeasures that polygraphers have no demonstrated ability to detect. The results are not to be relied upon.
Posted by skyking
- Oct 26, 2007, 04:48 PM13. Is your first name Marcia? Yes.
25. Are you hoping I'll make a mistake on your test today? No.
42R. Were you aware that your nephew was going to be at Cook's on the night in question? No.
46C. Before the age of 30 do you now remember telling a serious lie to someone who loved and trusted you? No
43R. Have you told your husband about all the conversations you've had about him with other people? Yes.
47C. Before the age of 30 do you now remember committing an undetected crime? No.
44R. Since you've been married have you had sexual contact with anyone he doesn't know about? No.
48C. Before the age of 30 do you now remember stealing something from a friend? No
45R. Were you a knowing participant in conversations with Lisa about your husband? No.
26. Are you afraid I'll make a mistake on your test today? No
The questions listed above were the ones on the polygraph my friend took. They seem a little vague to get accurate responses. Any others feel that way?
25. Are you hoping I'll make a mistake on your test today? No.
42R. Were you aware that your nephew was going to be at Cook's on the night in question? No.
46C. Before the age of 30 do you now remember telling a serious lie to someone who loved and trusted you? No
43R. Have you told your husband about all the conversations you've had about him with other people? Yes.
47C. Before the age of 30 do you now remember committing an undetected crime? No.
44R. Since you've been married have you had sexual contact with anyone he doesn't know about? No.
48C. Before the age of 30 do you now remember stealing something from a friend? No
45R. Were you a knowing participant in conversations with Lisa about your husband? No.
26. Are you afraid I'll make a mistake on your test today? No
The questions listed above were the ones on the polygraph my friend took. They seem a little vague to get accurate responses. Any others feel that way?