This study is based on a Ph.D. thesis conducted by the first author under the supervision of the second author. The authors would like to thank Dr. Joseph Almog, head of the Division of Criminal Identification. Israel National Police, and Dr, Avital Ginton, head of the Behavioral Section, for permission to use the Scientific Interrogation Unit's equipment in this research. The authors also wish to express their appreciation to Mr. Murray Kleiner, for his help in testing subjects and in evaluating the polygraph charts, and to Talta Robobitz, for her assistance in conducting the laboratory experiment.
Effects of Motivation and Verbal Response Type on Psychophysiological Detection of Information
Version of Record online: 30 JAN 2007
Volume 26, Issue 4, pages 442–451, July 1989
How to Cite
Elaad, E. and Ben-Shakhar, G. (1989), Effects of Motivation and Verbal Response Type on Psychophysiological Detection of Information. Psychophysiology, 26: 442–451. doi: 10.1111/j.1469-8986.1989.tb01950.x
In a reanalysis of Bradley and Warfield's (1984) data we tested whether the mean detection score of informed innocent subjects was greater than a chance expectation score. Using a normal approximation to the detection in dex distribution, it was demonstrated that the mean detection score based on the pooled data of all three informed innocent groups was significantly greater than chance (Z = 2.30, p < .05).
- Issue online: 30 JAN 2007
- Version of Record online: 30 JAN 2007
- (Manuscript received June 8, 1988; accepted for publication September 21, 1988)
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