Table 1.
Descriptive statistics for forensic sample: Demographics, IQ, psychopathy, and substance dependence (N = 245)
| Variable | Mean | SD | Percentage |
|---|---|---|---|
| Age | 36.14 | 10.85 | |
| Handedness | |||
| Right | 82.4 | ||
| Left | 9.8 | ||
| Ambidextrous | 6.9 | ||
| Ethnicity/Race | |||
| Hispanic/Latino | 40.3 | ||
| Not Hispanic/Latino | 59.7 | ||
| American Indian/Alaskan Native | 14.0 | ||
| Asian | 0.5 | ||
| Black/African American | 10.0 | ||
| Native Hawaiian/Pacific Islander | 0.0 | ||
| White | 50.7 | ||
| Other/Decline | 24.9 | ||
| IQ | 96.85 | 14.06 | |
| Psychopathy | |||
| Total | 20.73 | 6.81 | |
| Factor 1 | 6.18 | 3.39 | |
| Factor 2 | 12.19 | 3.90 | |
| Substance Dependence | |||
| None | 35.5 | ||
| Alcohol | 45.7 | ||
| Sedatives | 4.9 | ||
| Cannabis | 26.2 | ||
| Methamphetamine | 22.5 | ||
| Opioids | 18.0 | ||
| Cocaine | 31.0 | ||
| Hallucinogens | 4.8 | ||
| Number of dependencies | 1.52 | 1.56 |
Race/ethnicity data were collected for NIH reporting purposes.