Table 1.

Accuracy Means and Standard Deviations for Experiments 1-4.

Memory Load	Visual Set Size	Trial Type	Experiment 1	Experiment 2	Experiment 3	Experiment 4
Unimodal Memory Condition
Visual	4	Visual Change	.94 (.10)	.97 (.05)	.93 (.09)	.98 (.07)
	4	No Change	.96 (.08)	.92 (.09)	.97 (.06)	.97 (.07)
Visual	8	Visual Change	.71 (.22)	.70 (.13)	.63 (.19)	.72 (.21)
	8	No Change	.90 (.12)	.85 (.16)	.83 (.09)	.81 (.17)
Auditory	4	Auditory Change	.69 (.19)	.64 (.14)	.55 (.16)	.61 (.20)
	4	No Change	.89 (.10)	.86 (.14)	.82 (.15)	.73 (.22)
Auditory	8	Auditory Change	.70 (.16)	.70 (.13)	.54 (.14)	.61 (.21)
	8	No Change	.84 (.22)	.83 (.12)	.79 (.16)	.76 (.20)
Bimodal Memory Condition
Both	4	Visual Change	.87 (.12)	.88 (.14)	.80 (.19)	.81 (.20)
	4	Auditory Change	.67 (.14)	.65 (.16)	.40 (.15)	.46 (.26)
Both	4	Visual No Change	.92 (.11)	.86 (.12)	.83 (.14)	.82 (.16)
	4	Auditory No Change	.87 (.12)
Both	8	Visual Change	.62 (.22)	.65 (.21)	.57 (.17)	.58 (.23)
	8	Auditory Change	.63 (.19)	.63 (.15)	.43 (.16)	.50 (.24)
Both	8	Visual No Change	.87 (.15)	.81 (.15)	.77 (.13)	.73 (.17)
	8	Auditory No Change	.86 (.11)

Note. N=24 for Experiments 1 and 3, N=23 for Experiment 2, and N=48 for Experiment 4. Separate entries are shown for visual and auditory no-change trial types in the bimodal condition for Experiment 1 because probes only included stimuli in one modality. Only one combined entry is shown for no-change trial types in bimodal conditions for Experiments 2, 3, and 4 because probes always included stimuli in both modalities and thus did not differ in this respect. Separate entries for change trials are shown for all experiments because a change only ever occurred in one modality, visual or auditory. Standard deviations in parentheses.