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. 2016 Nov 16;38(3):1492–1506. doi: 10.1002/hbm.23467

Table 1.

Descriptive statistics for age and PPI‐R factor T scores

M(SD) Range
Age 21 (2.5) 18–29
PPI‐R total T 47.9 (9.2) 40–68
Fearless dominance T 47.7 (11.1) 27–68
Self‐centered impulsivity T 46.7 (7.1) 36–61
Coldheartedness T 45.8 (9.4) 33–67