Table 6.

Means (and Standard Deviations) of Measures Obtained from Sample 3

Variable	Mean (SD)	Range	Age r
Memory
SRT-total	57.91 (7.84)	31–72	−.48***
SRT-delayed recall	10.04 (1.88)	4–12	−.33***
SRT-recognition	11.82 (1.06)	1–12	−.01
Processing Speed
Digit Symbol	63.20 (14.29)	0–93	−.39***
Trails A	29.02 (12.33)	1–87	.30**
Gf
Letter Number	13.94 (5.58)	5–59	−.25**
WCST	49.84 (8.92)	28–66	−.35**
Matrix Reasoning	19.72 (6.97)	5–71	−.39***
Cognitive Reserve
Vocabulary	56.22 (9.79)	21–70	−.02
NART	118.13 (13.45)	9–148	.23*
Education	16.35 (1.87)	12–22	.19*

Note. Age r = age correlation; NART= National Adult Reading Test; SRT= Selective Reminding Test; WCST= Wisconsin Card Sorting Test.

^*p <.05.

^**p <.01.

^***p <.001.