Table 1.
Characteristics of participants.a
| Demographics | |
| Sex (% Male) | 52.2 |
| Age (years), M (SD) | 34 (9.5) |
| Shipley verbal, M (SD) | 28 (4.5) |
| Education (years), M (SD)b | 13 (1.3) |
| Ethnicity | |
| Caucasian (%) | 40.6 |
| Hispanic/Latino (%) | 33.3 |
| Other (%) | 10.1 |
| African American (%) | 10.1 |
| Asian American (%) | 4.3 |
| Native American (%) | 1.4 |
| Employment (N = 68) | |
| Full time (%) | 8.7 |
| Part time (%) | 14.5 |
| Unemployed (%) | 75.4 |
| Marital status | |
| Never Married (%) | 66.7 |
| Married (%) | 10.1 |
| Divorced (%) | 13.0 |
| Separated (%) | 7.2 |
| Widowed (%) | 2.9 |
| Substance Use c | |
| Smoked cigarettes (% yes)d | 83.3 |
| Alcohol days, M (SD)e | 2.9 (4.1) |
| Marijuana days, M (SD)f | 7.2 (11) |
| Methamphetamine days, M (SD)f | 24 (8.0) |
| Years heavily used methamphetamine, M (SD) | 9.0 (8.2) |
a
All met DSM IV criteria for Methamphetamine Dependence, N = 69 unless otherwise stated.
b
N = 67.
c
Self-report of use in the month before testing.
d
N = 66.
e
N = 63.
f
N = 67.