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:"...there is at present only limited scientific evidence for establishing the validity of polygraph testing. Even where the evidence seems to indicate that polygraph testing detects deceptive subjects better than chance, significant error rates are possible, and examiner and examinee differences and the use of countermeasures may further affect validity."<ref>{{Skeptoid|id=4422|number=422|date=8 July 2014|title=Lie Detection|access-date=22 June 2017}}</ref> |
:"...there is at present only limited scientific evidence for establishing the validity of polygraph testing. Even where the evidence seems to indicate that polygraph testing detects deceptive subjects better than chance, significant error rates are possible, and examiner and examinee differences and the use of countermeasures may further affect validity."<ref>{{Skeptoid|id=4422|number=422|date=8 July 2014|title=Lie Detection|access-date=22 June 2017}}</ref> |
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In the 2007 peer-reviewed academic article "Charlatanry in forensic speech science", the authors reviewed 50 years of lie detector research and came to the conclusion that there is no scientific evidence supporting that voice analysis lie detectors actually work.<ref>{{cite journal | last1 = Eriksson | first1 = A. | last2 = Lacerda | first2 = F. | year = 2007 | title = Charlantry in forensic speech science: A problem to be taken seriously | url = http://equinoxjournals.com/ojs/index.php/IJSLL/article/viewArticle/3775 | journal = International Journal of Speech, Language and the Law | volume = 14 | issue = 2 | doi=10.1558/ijsll.2007.14.2.169}}</ref> Lie detector manufacturer Nemesysco threatened to sue the academic publisher for libel resulting in removal of the article from online databases. In a letter to the publisher, Nemesysco's lawyers wrote that the authors of the article could be sued for defamation if they wrote on the subject again.<ref>[http://www.su.se/english/about/news_and_events/scientists_threatened_with_legal_action All lies? Scientists threatened with legal action over lie detector article] {{Webarchive|url=https://web.archive.org/web/20090413003343/http://www.su.se/english/about/news_and_events/scientists_threatened_with_legal_action |date=2009-04-13 }}. [[Stockholm University]].</ref><ref>[http://www.thelocal.se/17188/20090127/ Threats over Swedish lie detector research] {{webarchive|url=https://web.archive.org/web/20101207025139/http://www.thelocal.se/17188/20090127 |date=2010-12-07 }}. ''[[The Local]]''. January 27, 2009.</ref><ref>Online at: {{cite journal|author1=Anders Eriksson|author2=Francisco Lacerda|title=Charlatanry in forensic speech science: A problem to be taken seriously|journal=International Journal of Speech, Language and the Law|date=14 February 2007|volume=14.2 2007|page=169|url=https://www.cs.columbia.edu/~julia/papers/eriksson&lacerda07.pdf|access-date=3 September 2016|archive-url=https://web.archive.org/web/20160802124557/http://www.cs.columbia.edu/~julia/papers/eriksson%26lacerda07.pdf|archive-date=2 August 2016|url-status=dead}}</ref> |
In the 2007 peer-reviewed academic article "Charlatanry in forensic speech science", the authors reviewed 50 years of lie detector research and came to the conclusion that there is no scientific evidence supporting that voice analysis lie detectors actually work.<ref>{{cite journal | last1 = Eriksson | first1 = A. | last2 = Lacerda | first2 = F. | year = 2007 | title = Charlantry in forensic speech science: A problem to be taken seriously | url = http://equinoxjournals.com/ojs/index.php/IJSLL/article/viewArticle/3775 | journal = International Journal of Speech, Language and the Law | volume = 14 | issue = 2 | doi=10.1558/ijsll.2007.14.2.169}}</ref> Lie detector manufacturer Nemesysco threatened to sue the academic publisher for libel resulting in removal of the article from online databases. In a letter to the publisher, Nemesysco's lawyers wrote that the authors of the article could be sued for defamation if they wrote on the subject again.<ref>[http://www.su.se/english/about/news_and_events/scientists_threatened_with_legal_action All lies? Scientists threatened with legal action over lie detector article] {{Webarchive|url=https://web.archive.org/web/20090413003343/http://www.su.se/english/about/news_and_events/scientists_threatened_with_legal_action |date=2009-04-13 }}. [[Stockholm University]].</ref><ref>[http://www.thelocal.se/17188/20090127/ Threats over Swedish lie detector research] {{webarchive|url=https://web.archive.org/web/20101207025139/http://www.thelocal.se/17188/20090127 |date=2010-12-07 }}. ''[[The Local]]''. January 27, 2009.</ref><ref>Online at: {{cite journal|author1=Anders Eriksson|author2=Francisco Lacerda|title=Charlatanry in forensic speech science: A problem to be taken seriously|journal=The International Journal of Speech, Language and the Law|date=14 February 2007|volume=14.2 2007|page=169|url=https://www.cs.columbia.edu/~julia/papers/eriksson&lacerda07.pdf|access-date=3 September 2016|archive-url=https://web.archive.org/web/20160802124557/http://www.cs.columbia.edu/~julia/papers/eriksson%26lacerda07.pdf|archive-date=2 August 2016|url-status=dead}}</ref> |
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Nevertheless, extraneous "noise" on the polygraph can come from embarrassment or anxiety and not be specific to lying.<ref name=Preston /> When subjects are aware of the assessment their resulting emotional response, especially anxiety, can impact the data. Additionally, [[psychological disorders]] can cause problems with data as certain disorders can lead a person to make a statement they believe to be truth but is actually a fabrication. As well as with all testing, the examiner can cause biases within the test with their interaction with the subject and interpretation of the data.<ref name=Parliament /> |
Nevertheless, extraneous "noise" on the polygraph can come from embarrassment or anxiety and not be specific to lying.<ref name=Preston /> When subjects are aware of the assessment their resulting emotional response, especially anxiety, can impact the data. Additionally, [[psychological disorders]] can cause problems with data as certain disorders can lead a person to make a statement they believe to be truth but is actually a fabrication. As well as with all testing, the examiner can cause biases within the test with their interaction with the subject and interpretation of the data.<ref name=Parliament /> |
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