| Abstract: | Polygraph recordings of physiological reactions to a Group Concealed Information Test identified exposure to one of three mock village scenarios. Sixty-nine participants worked in groups on a card construction project while viewing tea making, bomb making, or no event. Participants denied knowledge of the events, but skin resistance and heart rate scores analysed by means of a multivariate analysis of variance, F(8, 106) = 4.08, and analyses of variance showed the tea group responding most on tea-related questions on skin resistance, F(2, 56) = 11.57, and heart rate, F(2, 56) = 4.58. The bomb group was highest for skin resistance, F(2, 56) = 6.17. Four of five and three of four groups who witnessed bomb and tea making, respectively, were identified at the 90% level of confidence, with combined scores suggesting that populations exposed to dangerous activities can be selectively distinguished. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
