. Author manuscript; available in PMC: 2015 Jan 14.

Published in final edited form as: Assessment. 2013 Apr 28;21(2):131–142. doi: 10.1177/1073191113486690

Table 2.

Correlations of Composite Scores in VCAP and WAIS-IV/WMS-IV Samples.

	VCAP					WAIS-IV/WMS-IV
	Vocab	Reas	Space	Memory	Speed	Gc	Gf	WM	VbM	VisM	Speed
Vocab	X	.64^*	.46^*	.43^*	.23^*	.88^*	.56^*	.28^*	.44^*	.21	.26^*
Reas	.43^*	X	.74^*	.65^*	.55^*	.72^*	.87^*	.74^*	.69^*	.69^*	.62^*
Space	.32^*	.73^*	X	.50^*	.44^*	.48^*	.84^*	.61^*	.45^*	.62^*	.51^*
Memory	.37^*	.63^*	.52^*	X	.47^*	.58^*	.70^*	.64^*	.85^*	.65^*	.48^*
Speed	.13^*	.60^*	.52^*	.53^*	X	.38^*	.68^*	.62^*	.35^*	.56^*	.85^*
Gc						X	.64^*	.38^*	.56^*	.28^*	.40^*
Gf						.58^*	X	.80^*	.63^*	.73^*	.65^*
WM						.48^*	.72^*	X	.54^*	.70^*	.58^*
VbM						.48^*	.47^*	.51^*	X	.62^*	.42^*
VisM						.27^*	.67^*	.62^*	.48^*	X	.61^*
Spd						.36^*	.60^*	.57^*	.39^*	.52^*	X

Note. VCAP = Virginia Cognitive Aging Project; WAIS-IV = Wechsler Adult Intelligence Scale–IV; WMS-IV = Wechsler Memory Scale–IV; Gc = crystallized ability; Gf = fluid ability; WM = working memory; VbM = verbal memory; VisM = visual memory. The constructs are defined by the variables listed in Figure 1. Values above the diagonal are from the Linkage sample, values below the diagonal in the upper left quadrant are from the VCAP sample, and values below the diagonal in the lower right quadrant are from the WAIS-IV/WMS-IV sample. All correlations are significant at p < .01. Values in boldface are correlations between theoretically comparable constructs in the two batteries.

p < .01.