Table 1.

Lie detection accuracy of individual judgments, group discussion, nominal groups, and simulated nominal groups in experiment 1

Condition	Accuracy, %			“Truth” guesses
	Overall	Truths	Lies
Real groups	61.7a*	60.6a*	63.9a*	50.3
Individuals	53.6b*	57.0a,b*	51.2b	53.6*
Nominal groups
Simultaneous	54.0a,b*	58.0a,b*	51.7b	54.0*
Simulated group of 3	54.5b*	58.4a,b*	52.7b*	54.3*
Simulated group of 7	56.9a*	62.1a*	53.4b*	55.9*
Simulated group of 11	57.7a*	64.3a*	53.2b*	57.2*
Simulated group of 15	57.1a*	65.1a*	50.9b	58.7*
Aggregated real groups	70.0	74.7	68.7	55.3
Best individuals	65.3a*	66.1a*	64.4a*	50.7

All means are reported as percentages. In the accuracy columns, means that do not share the same subscript within columns differ at P < 0.05. Simulated nominal groups are compared with real groups and individuals on one-sample t tests. The aggregated real groups figures are provided for descriptive purposes only as a result of lack of sufficient degrees of freedom to perform statistical tests.

^*Means differ from 50% (chance responding) at P < 0.05.