. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: Psychol Aging. 2010 Sep;25(3):595–605. doi: 10.1037/a0019771

Table 3.

Correlations among the PM, WM, and Vigilance Tasks

	Regular More Focal	Regular Less Focal	Irregular More Focal	Irregular Less Focal	PVT	WM
Regular More Focal	.90	.57 ^**	.61 ^**	.54 ^**	−.07	.18
Regular Less Focal	.39 ^*	.87	.54 ^**	.57 ^**	.10	.29
Irregular More Focal	.30	.39 ^*	.92	.52 ^**	−.04	.30
Irregular Less Focal	.26	.54 ^**	.48 ^**	.87	.19	.50 ^*
PVT	− .41 ^*	−.27	−.21	−.22	.97	.01
WM	.17	.15	.16	.40 ^*	− .29	.86

Note. Correlations for the young adult group are below the diagonal. Correlations for the older adult group are above the diagonal. Spearman-Brown split-half reliability coefficients are on the diagonal.

^**

p<.001

p<.01, bolded values<.05