. 2011 Feb 3;6(2):e16618. doi: 10.1371/journal.pone.0016618

Table 4. Confound Free Age Contrasts: Vigilance with Focal Cues.

1^st Author & Year	Exp.	Condition	n_y	n_o	M_y	M_o	Notes
Cohen '01 [63]	1	very related	24	24	0.92	0.78
Cohen '01 [63]	1	somewhat related^*	24	24	0.87	0.72
Cohen '01 [63]	1	unrelated	24	24	0.73	0.52
Cohen '01 [63]	2	picture+word related	24	24	0.96	0.85
Cohen '01 [63]	2	picture+word unrelated	24	24	0.91	0.74
Cohen '01 [63]	2	word only related^*	24	24	0.74	0.45
Cohen '01 [63]	2	word only unrelated	24	24	0.73	0.34
d'Ydewalle '99 [64]	1	q&a	30	30	0.81	0.42
Einstein '95 [65]	2	specific cue^*	11	12	0.85	0.83
Einstein '97 [66]	1	standard^*	16	16	0.71	0.53
Einstein '97 [66]	1	demanding^*	16	16	0.58	0.25
Einstein '97 [66]	2	enc std/ret std^*	16	16	0.66	0.58
Einstein '97 [66]	2	enc std/ret dem^*	16	16	0.64	0.38
Einstein '97 [66]	2	enc dem/ret std^*	16	16	0.47	0.54
Einstein '97 [66]	2	enc dem/ret dem^*	16	16	0.55	0.17
Einstein '98 [67]	1	std att/no cue^*	15	15	0.91	0.69
Einstein '98 [67]	1	std att/cue^*	15	15	0.89	0.73
Einstein '98 [67]	1	div att/no cue^*	15	15	0.82	0.62
Einstein '98 [67]	1	div att/cue^*	15	15	0.81	0.52
Logie '04 [68]	1	low arithmetic	10	10	1.00	0.98
Logie '04 [68]	1	high arithmetic^*	10	10	0.96	0.80
Martin '03 [32]	1	word rating^*	40	40	0.95	0.79
Maylor '02 [69]	1	movie^*	15	15	1.00	0.92
Maylor '02 [69]	2	related	10	10	1.00	0.88
Maylor '02 [69]	2	unrelated^*	10	10	0.96	0.90
McDaniel'07 [13]	1	focal^*	14	14	0.89	0.83
McDaniel'07 [13]	2	focal/trial 1^*	24	24	0.92	0.83
McDaniel'07 [13]	2	focal/trial 2	24	24	0.96	1.00
McDaniel'07 [13]	2	focal/trial 3	24	24	0.96	0.92
McDaniel'07 [13]	2	focal/trial 4	24	24	0.88	0.88
Rendell'07 [15]	1	focal^*	72	60	0.91	0.77
Salthouse '04 [22]	1	concepts	255	75	0.75	0.49
Salthouse '04 [22]	1	pictures	255	75	0.95	0.81
Vogels '02 [70]	1	pictures	16	14	0.84	0.69
West '01b [71]	1	percep/immed	20	20	0.86	0.60
West '01b [71]	1	percept/post	20	20	0.58	0.24
West '01b [71]	1	sem/immed^*	20	20	0.58	0.39
West '01b [71]	1	sem/post	20	20	0.64	0.24

Note. Means limited by severe ceiling effects are printed in bold;

*identifies independent age contrasts (see Methods).