Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage by Paul Ekman

Author:Paul Ekman
Language: eng
Format: mobi, pdf
Tags: &NEW
Published: 2011-07-06T20:23:49+00:00

POLYGRAPH ACCURACY

FIELD STUDIES ANALOG STUDIES*

*The graph gives the averages, which are not always an accurate reflection of the range of research results. The ranges are as follows: For liars correctly identified in field studies, 71-99%; in analog studies using the control question technique, 35-100%; in analog studies using the guilty knowledge tests, 61-95%. For truthful persons correctly identified: in field studies, 13-94%; in analog studies using the control question technique, 32-91%; in analog studies using the guilty knowledge test, 80-100%. For truthful persons incorrectly identified: in field studies, 0-75%; in analog studies using the control question technique, 2 - 5 1 % ; in analog studies using the guilty knowledge test, 0-12%. For liars incorrectly identified; in field studies, 0-29%; in analog studies using the control question technique, 0-29%; in analog studies using the guilty knowledge test, 5-39%.

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