Effects of Examiner's and Examinee's Race on Psychophysiological Detection of Deception Outcome Accuracy.
Final rept. May 91-Feb 93,
DEPARTMENT OF DEFENSE POLYGRAPH INST FORT MCCLELLAN AL
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This study was designed to assess how the race of the examinee andor the race of the examiner affected the accuracies of Modified General Question Technique MGQT and Zone Comparison Test ZCT psychophysiological detection of deception PDD examinations. The study utilized 213 military 50 African-American, 108 Caucasian, 52 Hispanic, and 3 other, and 168 civilian 45 African-American, 110 Caucasian, and 10 Hispanic, and 3 other examinees. Two hundred and thirty-two examinees were male and 147 examinees were female. The examiners were three African-American, three Hispanic, and seven Caucasian student examiners from the Department of Defense Polygraph Institute DoDPI Basic Polygraph Examiners Training Course 91-1. The students participated in the study during their 7th, 8th, 10th, and 11th weeks of instruction. Students utilized field polygraph instruments. A variety of scenarios rape, murder, robbery were used to program examinees to be guilty. Analyses of the data included an assessment of the effect of the race of the examinee on the accuracies of the examinations, the effect of the race of the examiner on the accuracies of the examinations, and the effect of the interaction of the race of the examinee and the race of the examiner on the accuracies of the examinations. The accuracies of the examinations were not different based on the race of the examinee, the race of the examiner, nor the interaction of the races of the examinee and examiner.
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