YDT 2023 Soru=24566

(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.