Test of a Mock Theft Scenario for Use in the Psychophysiological Detection of Deception: III.
Abstract
The Zone Comparison Test (ZCT), a psychophysiological detection of deception (PDD) test, was administered to 30 healthy male and female paid volunteers recruited by a local employment agency. The subjects were programmed to be either deceptive or non-deceptive regarding the mock theft of a valuable coin. This pilot study was designed to determine the effectiveness of the coin theft as a mock crime scenario for laboratory tests when a live pretest is used with the ZCT, with videotaped instructions, and with the digitized voice presentation of test questions. PDD tests were blind-evaluated by three independent scorers using the three position scale, scoring method. The frequencies of accurate determinations made were compared using proportionality tests. The overall accuracy rate was 6O% when inconclusive examiner decisions were included. When inconclusive examiner decisions were excluded the overall accuracy rate increased to 87%. A significant interrater agreement among the blind scorers was found using the kappa statistic for multiple raters (p < .05). However, a proportionality test indicated that the level of unanimous agreement was not significantly different from a chance level (p > .05). It was concluded that this mock scenario did not meet the accuracy requirements for a standard scenario.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1996
- Accession Number
- ADA321138
Entities
People
- Eben M. Ingram
Organizations
- United States Department of Defense