Table 3. Individual search times and relative improvements at level 1.

	patients level 1			comparison group level 1
id	STstart (s)	STend (s)	ri	id	STT1 (s)	STT2 (s)	ri
1	12.9	6.6	0.49	100	2.7	2.8	-0.05
3	3.3	2.8	0.14	101	1.9	1.5	0.17
4	3.6	3.0	0.16	102	1.3	1.3	0.01
6	4.9	2.9	0.41	103	1.3	1.7	-0.23
7	3.7	2.5	0.34	104	1.5	1.5	0.03
8	8.6	7.7	0.10	105	1.5	1.6	-0.08
9	2.1	2.0	0.01	106	1.2	1.2	0.01
10	1.4	1.1	0.22	107	1.5	1.4	0.03
11	1.5	1.2	0.20	108	2.4	1.9	0.21
12	2.6	1.9	0.25	109	1.3	1.1	0.13
13	8.1	4.5	0.45	110	1.1	1.0	0.15
14	1.4	1.2	0.17	110	1.9	1.8	0.04
15	1.6	1.6	0.00	112	1.3	1.3	-0.01
16	2.9	2.2	0.25	113	1.1	1.0	0.08
17	3.4	2.4	0.29	114	3.3	3.0	0.10
19	1.8	2.0	-0.09	115	2.1	2.4	-0.14
20	1.5	1.2	0.18
22	6.4	9.0	-0.41
25
28	2.6	2.2	0.14
30	2.0	1.6	0.18
31	8.6	6.8	0.22

id = patient’s id, ST_start (s) and ST_end (s) = Search time per search target at start and end of training in seconds for the patients, ST_T1 (s) and ST_T2 (s) = Search times per search target in seconds for the comparison group at T1 and T2 without training, ri = relative improvement of search time ($\frac{{\mathrm{S}\mathrm{T}}_{\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{r}\mathrm{t}}-{\mathrm{S}\mathrm{T}}_{\mathrm{e}\mathrm{n}\mathrm{d}}}{{\mathrm{S}\mathrm{T}}_{\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{r}\mathrm{t}}}$). Missing data: Patient #25 trained the entire 6 weeks only at level 2 (see Table in “S1 Table” for individual search times at levels 2 and 3).