Table 1.

Mean Accuracy and RT by Group, Previous Trial Accuracy, and Current Trial Compatibility

		Current trial
		Accuracy			RT
	Previous trial accuracy	Comp	Incomp	F	Comp	Incomp	F
Control
	Correct	0.97	0.91	92.94**	371	422	254.86**
		0.03	0.06		68	69
	Incorrect	0.96	0.91	4.30*	426	473	26.01**
		0.06	0.09		94	88
Placebo
	Correct	0.99	0.90	178.17**	374	432	300.79**
		0.01	0.07		76	82
	Incorrect	0.97	0.93	8.80*	412	456	28.17**
		0.06	0.09		90	85
Alcohol
	Correct	0.97	0.88	127.99**	377	427	200.31**
		0.02	0.07		70	72
	Incorrect	0.96	0.90	10.72**	437	503	131.14**
		0.06	0.09		109	119

Note. Comp = compatible arrays; Incomp = incompatible arrays. Italicized numbers are standard deviations. Columns labeled “F” provide values of F-tests comparing compatible versus incompatible means for each condition.

^*p < .05;

^**p < .01.