YKS 2023 · Soru 76

(I) The lie detector, or polygraph, was devised in the 1930s, but from the mid-1970s various psychologists conducted serious research into the lie detector and all condemned it. (II) In 1988, the Polygraph Protection Act prohibited US employers from requiring or requesting that employees be polygraphed. (III) However, in half of all American states, findings provided by the lie detector can still be admitted as evidence in legal cases. (IV) To be acceptable as a test, a lie detector must minimally fulfil a number of criteria, the first of which is to have a standardised method of administration. (V) Polygraphs are currently used throughout the world from Canada to Thailand, Israel to Taiwan, though their use is limited.