Table IV.

Hierarchical multiple regression analysis using crime-related trauma and PTSD symptoms to predict psychopathy severity

	Block 1			Block 2			Block 3
Predictor	B	SE B	β	B	SE B	β	B	SE B	β
Gender	−5.90	3.20	−0.20	−5.21	3.22	−0.17	−5.21	3.20	−0.17
Crime-related trauma				4.47	3.24	0.15	4.27	3.22	0.14
PTSD symptoms							0.18	0.12	0.16
Model parameters
R 2		0.04			0.06			0.09
Δ R 2		0.04			0.02			0.03
F for ΔR2		3.40			1.91			2.24

Notes: B, unstandardized slope coefficient; SE B, standard of B; β, standardized slope coefficient.

^*p ⩽ 0.05;

^**p ⩽ 0.01;

^***p ⩽ 0.001