Table 1. Results of a paired 2-tailed T-test comparing discrimination (dis) to categorisation (cat) for each observer (AR, DO, DC) at long and short stimulus durations.

		Paired Differences
		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference		t	df	Sig. (2-tailed)
					Lower	Upper
Pair 1	Long duration ARdis - ARcat	−26.93182	16.60946	1.11981	−29.13880	−24.72483	−24.050	219	.000
Pair 2	DOdis - DOcat	−34.50000	27.00900	1.82095	−38.08882	−30.91118	−18.946	219	.000
Pair 3	DCdis - DCcat	−45.26136	32.63215	2.20006	−49.59736	−40.92537	−20.573	219	.000
Pair 1	Short duration ARdis - ARcat	−26.84091	18.15452	1.22398	−29.25319	−24.42863	−21.929	219	0.000
Pair 2	DOdis - DOcat	−20.31818	41.00633	2.76465	−25.76690	−14.86946	−7.349	219	0.000
Pair 3	DCdis - DCcat	−36.73864	22.55548	1.52069	−39.73570	−33.74158	−24.159	219	0.000

All values significant (p<.001).