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. 2016 Nov 28;113(50):14438–14443. doi: 10.1073/pnas.1609985113

Table S1.

Sample characteristics

Characteristic N Min Max M SD
Age 62 19 55 38.65 11.34
Sex (male) 62
Race
 White 23
 Black 35
 Biracial 4
Highest level of education 2 8 3.94 1.36
 1. Grade 6 and below 0
 2. Grade 7–12 6
 3. Graduated high school or equivalent 18
 4. Some college 27
 5. Graduated 2-y college 2
 6. Graduated 4-y college 5
 7. Some graduate/professional school 2
 8. Completed graduate/professional school 2
Annual Income 1 5 1.81 1.32
 1. $0–$15,000 38
 2. $15,001–$30,000 13
 3. $30,001–$45,000 3
 4. $55,001–$60,000 1
 5. $60,001+ 7
Employment status 1 6 2.68 1.38
 1. Full time 15
 2. Part time 9
 3. Unemployed 30
 4. Retired 0
 5. Disability 4
 6. Full-time student 4
Number of arrests 0 40 4.19 6.61
 0 16
 1–5 31
 6–10 9
 11+ 6
Number of incarcerations 0 11 0.94 1.71
 0 30
 1–5 30
 6–10 1
 11+ 1
IQ 62 85 125 106.85 10.80
SRP-III total 62 100 236 163.35 28.83