Table 4.

Dual-task costs (relative performance in %).

Modality	Load	Training group			Control group			t-test (between subject)
		T1	T2	t-test (T1 to T2)	T1	T2	t-test (T1 to T2)	T1	T2
Visual	1	16.55 (21.13)	10.67 (19.71)	t(17) = 0.897, p = 0.382	23.60 (35.11)	12.63 (22.24)	t(15) = 1.458, p = 0.166	t(32) = -0.719, p = 0.478	t(32) = -0.272, p = 0.787
Visual	2	83.37 (31.24)	54.33 (34.03)	t(17) = 3.531, p = 0.003	49.94 (44.34)	58.50 (46.07)	t(15) = -0.541, p = 0.596	t(32) = 2.564, p = 0.015	t(32) = -0.302, p = 0.764
Auditory	1	19.89 (21.52)	4.60 (8.00)	t(17) = 3.324, p = 0.004	20.19 (27.54)	17.20 (20.49)	t(15) = 0.405, p = 0.691	t(32) = -0.035, p = 0.972	t(32) = -2.415, p = 0.022
Auditory	2	53.39 (36.72)	52.33 (25.84)	t(17) = 0.098, p = 0.923	59.50 (37.32)	57.13 (30.65)	t(15) = 0.191, p = 0.851	t(32) = -0.481, p = 0.634	t(32) = -0.495, p = 0.624

Mean (SD); T1, pre-test; T2, post-test.