Intelligence and psychopathy: A study on non-incarcerated females from the normal population

Figures & data

Table 1. Descriptive statistics for psychopathy and intelligence

	PPI-T	PPI-I	PPI-II	LPSP-T	LPSP-I	LPSP-II	EPQ-P	SPM-IQ
M	335.4	124.54	155.18	47.3	28.82	18.56	2.04	50.2
SD	38.97	22.18	23.92	9.04	5.75	4.84	1.55	4.49
Range	181	95	106	43	31	22	7	22
Minimum	268	80	115	31	17	10	0	37
Maximum	449	175	211	74	48	32	7	59
Kurtosis	−.31	−.53	−.94	−.25	.04	.12	.21	.06
Skewness	.46	.39	.31	.52	.52	.78	.67	−.5

Notes: PPI = Psychopathic Personality Inventory; LPSP = Levenson Primary and Secondary Psychopathy; EPQ-P = Psychoticism subscale of the Eysenck Personality Questionnaire; SPM-IQ = Raven’s Standard Progressive Matrices. N = 121.

Figure 1. Correlation between LPSP-I and SPM.

Figure 2. Differential improvement in performance on the SPM.

Note: We found positive correlations between both Psychoticism and the interpersonal facet of psychopathy of the LPSP and Raven’s SPM for a group of normative females.