Table 2.

Means (and Standard Deviations) of Cognitive Variables for Samples 1 and 2

Variable	Mean (SD)	Range	Age r	Mean (SD)	Range	Age r
	Sample 1			Sample 2
Memory
CVLT-total	30.40 (8.62)	8–55	−.38***	28.38 (6.26)	11–49	−.23***
CVLT-recall	6.36 (2.71)	0–12	−.31***	5.83 (2.26)	0–12	−.17**
CVLT-recognition	10.94 (1.51)	4–12	−.30***	10.37 (1.63)	4–12	−.15**
Processing Speed
Grooved Pegboard, dom	108.24 (27.07)	62–150	.50***	109.41 (25.78)	60–150	.43***
Grooved Pegboard, non-dom	115.23 (25.85)	64–150	.45***	113.46 (24.73)	70–150	.38***
Executive Function
Odd-Man-Out total	31.04 (6.55)	8–40	−.32***	26.32 (6.11)	7–40	−.16**
Trails difference	80.70 (46.32)	−6 – 235	.21***	108.54 (52.05)	−41–245	.21***
Letter Number	8.12 (3.21)	0–19	−.29***	5.77 (2.25)	2–13	−.26**
Cognitive Reserve
PPVT	175 (23.22)	84–203	−.11	98.99 (22.39)	14–200	−.16**
Education	13.47 (3.63)	1 – 20	−.14**	7.40(4.46)	0–20	−.15**
WRAT/WAT	44.41 (6.23)	21–55	−.02	13.37 (6.48)	0–28	.01

Note. Age r = age correlation; CVLT= California Verbal Learning Test; PPVT= Peabody Picture Vocabulary Test; WRAT= Wide Range Achievement Test; WAT= Word Accentuation Test;

^*p <.05.

^**p <.01.

^***p <.001.