Table 5.
Demographic Variables and Group Differences Between Classes for the PCL-R and PPI
| PCL-R | Low F1 Low F2 |
Low F1 High F2 |
High F1 Low F2 |
High F1 High F2 |
Statistics |
|---|---|---|---|---|---|
| Gender (% Male) | 67.8 | 84.6 | 91.3 | 92.1 | χ2 (3) = 82.32, p < .001 |
| Race (% Caucasian) | 74.1 | 71.1 | 54.3 | 55.8 | χ2 (3) = 40.86, p < .001 |
| Education | χ2 (6) = 39.56, p < .001 | ||||
| less than HS | 19.4 | 27.2 | 13.0 | 25.9 | |
| HS or equivalent | 44.2 | 48.9 | 26.1 | 43.7 | |
| some college and above |
36.4 | 23.9 | 60.9 | 30.4 | |
| Site | χ2 (3) = 52.09, p < .001 | ||||
| prison | 39.9 | 47.2 | 67.4 | 63.2 | |
| substance abuse | 60.1 | 52.8 | 32.6 | 36.8 | |
| PPI | |||||
| Gender (% Male) | 84.1 | 60 | 84.2 | 89.7 | χ2 (3) = 12.09, p < .01 |
| Race (% Caucasian) | 66.5 | 75 | 60.8 | 83.9 | χ2 (3) = 13.14, p < .01 |
| Education | χ2 (6) = 39.91, p < .001 | ||||
| less than HS | 26.3 | 24 | 20.2 | 36.2 | |
| HS or equivalent | 47.6 | 36 | 37.9 | 48.3 | |
| some college and above |
26.1 | 40 | 41.9 | 15.5 | |
| Site | χ2 (3) = 36.77, p < .001 | ||||
| prison | 48.7 | 44 | 65.7 | 37.9 | |
| substance abuse | 51.3 | 56 | 34.3 | 62.1 |
Note. PCL-R = Psychopathy Checklist-Revised; PPI = Psychopathic Personality Inventory; F1 = Factor 1; F2 = Factor 2.