NCJ Number
238542
Journal
Polygraph Volume: 41 Issue: 1 Dated: 2012 Pages: 29-38
Date Published
2012
Length
10 pages
Annotation
This study examined the criterion accuracy of the U.S. Air Force Modified General Question Technique (MGQT) format for PDD (psychophysiological detection of deception) examinations.
Abstract
Criterion accuracy profiles were calculated for the U.S. Air Force Modified General Question Technique (MGQT) format for PDD (psychophysiological detection of deception) examinations. The dimensional profile of criterion accuracy was compared to results from seven-position scores and ESS scores from earlier studies. Criterion accuracy of three-position scores of the USAF-MGQT exams was significantly greater than chance, with no significant differences in test sensitivity to deception compared to the results of the seven-position and ESS TDA models in the previous studies. Test specificity was significantly weaker for the three-position model compared to the other TDA models and truthful case inconclusive results were significantly higher for three-position compared to the other models. Additional research is recommended to determine whether normative data and the use of statistically optimal cutscores would increase test specificity and decrease inconclusive results with the three position scoring model. (Published Abstract)