Table 2.

Means and standard deviations (in parenthesis) for raw scores on the neuropsychological tests for the APOE4 carriers and non-carriers, along with results from independent samples t-tests.

	APOE4 Carriers	Non-Carriers	t score	p value
CVLT LDFR	11.9(3.3)	11.7(3.1)	0.2	0.85
RCFT LDFR	18.7(6.0)	14.3(6.1)	2.4	0.02
Trails A	32.0”(9.6)	28.7”(9.2)	1.1	0.26
Trails B	73.1”(20.3)	64.1”(18.2)	1.6	0.13
BNT	58.2(2.3)	58.4(1.8)	0.4	0.69
WAIS-IV Block Design	43.9(9.8)	40.7(9.4)	1.1	0.27
RCFT Copy	31.8(3.6)	28.2(6.4)	2.2	0.03

Notes: As a group, the APOE4 carriers were not significantly lower than the non-carriers for raw scores on any of the standard neuropsychological tests that were included in the cognitive screening battery. Rather, the APOE4 carriers performed better than non-carriers for our RCFT measures. CVLT LDFR = California Verbal Learning Test Long Delay Free Recall; RCFT LDFR = Rey Complex Figure Test Long Delay Free Recall; BNT = Boston Naming Test; WAIS-IV = Weschler Adult Intelligence Scale Fourth Edition