. Author manuscript; available in PMC: 2010 May 17.

Published in final edited form as: J Drug Issues. 2002 Fall;32(4):1051–1070. doi: 10.1177/002204260203200403

Table 2.

Cognitive Testing (N = 21)

Test	Score		% Impaired as Compared to Vocabulary and Similarities
Test	M	SD	% Impaired as Compared to Vocabulary and Similarities
WAIS-R
Vocabulary	9.00	2.20	-
Similarities	12.83	17.59	-
Block Design	16.35	19.19	4
Object Assembly	10.26	2.38	4
Digit Symbol	8.04	1.87	24
WMS-R
Logical Memory 1	20.70	7.15	12
Logical Memory 2	16.70	8.36	24
Trails A (seconds)	28.87	10.24	4
Trails B (seconds)	71.78	33.42	16

Note: WAIS-R is Wechsler Adult Intelligence Scale-Revised (1981); WMS-R is Wechsler Memory Scale-Revised (1987).

Mean = M; standard deviation = SD.