Table 2.

Error rates in percent in single-task trials of single-task blocks, single-task trials in mixed blocks (mixed single-task trials), and dual-task trials for the auditory task in older and younger adults across Session 2–21 (older adults) or Session 2–8 (younger adults).

Task	Session	Older adults			Younger adults
		Single-task trials	Mixed single-task trials	Dual-task trials	Single-task trials	Mixed single-task trials	Dual-task trials
Auditory task	2	10.7	13.5	16.6	4.1	3.7	6.3
	3	11.5	11.4	12.3	3.3	3.4	5.8
	4	8.4	9.0	12.0	1.9	3.0	3.9
	5	6.6	7.6	10.6	3.1	2.4	5.4
	6	9.3	6.9	9.8	6.1	4.5	5.7
	7	6.0	7.9	9.2	5.1	4.5	5.8
	8	7.0	5.8	7.3	3.9	3.5	5.6
	9	6.7	6.7	9.8
	10	7.8	7.0	10.0
	11	8.2	6.8	8.7
	12	8.2	6.8	9.2
	13	6.6	5.5	8.3
	14	7.2	8.8	9.7
	15	6.9	7.1	9.8
	16	9.4	8.7	10.0
	17	1.1	1.2	1.5
	18	1.1	3.3	1.7
	19	1.1	0.9	1.3
	20	1.8	4.3	3.0
	21	2.7	2.5	4.1

Session 2–12: Strobach et al. (2012b), Session 13–16: Experiment 1, Session 17–21: Experiment 2.