. Author manuscript; available in PMC: 2009 May 15.

Published in final edited form as: Mem Cognit. 2008 Dec;36(8):1484–1494. doi: 10.3758/MC.36.8.1484

Table 3.

Mean Error Rates for Item-Specific PC-50, PC-25, and PC-75 Trials in Experiment 1

	Congruent		Incongruent		Stroop Effect
	M	SE	M	SE	M	SE
Young
IS PC-25 & LW PC-33	.009	.003	.023	.004	.013	.006
IS PC-50 & LW PC-33	.004	.002	.045	.010	.041	.010
IS PC-50 & LW PC-67	.009	.004	.044	.011	.035	.010
IS PC-75 & LW PC-67	.002	.001	.065	.016	.063	.016
Old
IS PC-25 & LW PC-33	.000	.000	.013	.003	.013	.003
IS PC-50 & LW PC-33	.002	.002	.024	.008	.022	.008
IS PC-50 & LW PC-67	.002	.002	.024	.013	.022	.013
IS PC-75 & LW PC-67	.001	.001	.023	.005	.022	.005

Note. IS, item-specific; LW, list-wide; PC, proportion congruence, with the number referring to the proportion of congruent trials. Stroop effect = error rate(incongruent) - error rate(congruent).