Table 3. Mean, 95% CI and Range of performance on 2-Back and 3-Back.

	Mean	Mean 95% CI	Range	Mean	Mean 95% CI	Range
	2-Back (N = 3595)			3-Back (N = 3551)
Hits	0.71	[0.71, 0.72]	0.13, 0.94	0.56	[0.55, 0.57]	0.13, 0.94
FA	0.21	[0.20, 0.21]	0.01, 0.97	0.22	[0.21, 0.22]	0.01, 0.97
Hits RT	702.84	[695.11, 710.57]	139.50, 2002.50	737.12	[727.20, 747.04]	74.5, 2410
nonT RT	671.91	[664.92, 678.89]	6.50, 1858.50	696.94	[688.27, 705.61]	32, 2278
d’	1.73	[1.69, 1.77]	-3.01, 3.79	1.12	[1.08, 1.15]	-2.77, 3.79
ca	0.19	[0.17, 0.21]	-1.70, 1.50	0.37	[0.35, 0.38]	-1.53, 1.70

^a negative values of c signify liberal bias, whereas positive values signify conservative bias.