Using variance as a discriminator in lie detection

Abstract

Used GSR data from a study of 207 male undergraduates conducted by M. T. Orne and R. I. Thackray (see record 1968-08483-001 ) to show that the variance of response was a suitable discriminator between liars and truthtellers when an individual's deception was detected on a single trial. Ss who were liars differed from Ss who were truthtellers on all trials, not just on the ones in which they tried to deceive E. The discrimination between liars and truthtellers was facilitated by G. Gruvaeus and H. Wainer's 1972 method of cluster analysis. (PsycInfo Database Record (c) 2025 APA, all rights reserved)