Word: lykken
(lookup in dictionary)
(lookup stats)
Dates: during 1980-1980
Sort By: most recent first
(reverse)
...nation's estimated 3,500 examiners generally claim an accuracy rate of 90% for lie detectors or polygraphs. Critics put the figure much lower. In an upcoming book, A Tremor in the Blood, University of Minnesota Psychiatry and Psychology Professor David Lykken maintains that the most prevalent test is correct only two-thirds of the time, and, more critically, that it is far more likely to err when the person being tested is truthful. Lykken also argues that polygraph sensors-which monitor changes in breathing, pulse rate, blood pressure and the conductivity of the skin as the subject...