TABLE 3.

Relations Between PCL-R Factor 1 and 2 Scores and Personality Before and After Partialling

Personality Scale	Raw Factor 1	Residual Factor 1	z Value	Raw Factor 2	Residual Factor 2	z Value
EPQ-Extraversion	.063	.027	1.25	.085	.072	< 1
EPQ-Neuroticism	−.044	−.186	3.97***	.191	.285	2.65**
EPQ-Psychoticism	.149	.030	5.64**	.253	.238	< 1
EPQ-Lie	−.116	.084	6.90***	−.359	−.402	1.66
PPI-Egocentricity	.832	.202	6.52***	1.36	1.26	1.16
PPI–Social potency	.599	.473	1.92	.490	.250	3.54***
PPI-Fearlessness	.188	−.294	6.64***	.812	.961	2.25*
PPI-Coldheartedness	.359	.289	1.17	.286	.139	2.42*
PPI–Imp. nonconform	.419	.024	7.92***	.870	.882	< 1
PPI–Blame external	.382	.113	4.32***	.593	.536	< 1
PPI-Nonplanfulness	.140	−.198	5.42***	.571	.672	1.70
PPI–Stress immunity	.149	.251	2.81**	−.075	−.203	3.5***
Proactive Agg.	.424	−.061	5.87***	.974	.997	< 1
Reactive Agg.	.185	−.364	6.02***	.990	1.13	2.29*
PSD Factor 1	.016	.002	4.78***	.028	.027	< 1
PSD Factor 2	.024	.005	5.96***	.039	.036	< 1
Similarity coefficients
Resid PCL-R F1	.201
Raw PCL-R F2	.509	−.388
Resid PCL-R F2	.399	−.465		.976

NOTE: Numbers in top part of table are unstandardized regression coefficients. Coefficients significant at p < .05 are indicated in bold. The z value is the test of the difference between the raw and residualized coefficients. PCL-R = Psychopathy Checklist–Revised; EPQ = Eysenck Personality Questionnaire; PPI = Psychopathic Personality Instrument; PSD = Psychopathy Screening Device; Agg. = Aggression; Resid = Residual. Similarity coefficients are intraclass correlation coefficients that index the similarity between unstandardized regression coefficients from equations predicting EPQ and PPI subscales and selected other subscales either ignoring the corresponding subscale (Raw) or accounting for overlap with it (Residual).

^*p < .05.

^**p < .01.

^***p < .001.