Table Five.

Testing the significance of deviation from chance levels for cue strings of length 3. “Mean difference” is the difference between the average empirical chance level and the average performance for that position in the list. Even with a concern for statistical significance raised by the problem of multiple comparisons, it is clear that observers perform better than chance.

nback	SOA	Mean Diff.	t(11)	P-Value
0	50 msec	10%	2.69	0.021
1	50 msec	22%	7.11	<.0001
2	50 msec	31%	8.97	<.0001
0	150 msec	44%	6.31	<.0001
1	150 msec	32%	4.88	0.0005
2	150 msec	32%	4.67	0.0007
0	300 msec	56%	13.38	<.0001
1	300 msec	38%	6.95	<.0001
2	300 msec	40%	6.66	<.0001