Table 1.

Participant group characteristics. Cauc, Caucasian. Est IQ, estimated IQ based on the Shipley Institute of Living Scale (Zachary, 1986). WAS, Welsh Anxiety Scale. F1, Factor 1. F2, Factor 2. For each group, means are presented with standard deviations in parentheses. Groups did not significantly differ on age (p=0.46), race (p=0.39), or estimated IQ (p=0.38).

	Age	Race (% Cauc)	Est IQ	PCL-R total	WAS	PCL-R F1	PCL-R F2
Primary psychopaths (n=6)	30.3 (9.4)	83	91.6 (19.7)	32.3 (1.5)	6.2 (2.6)	12.5 (1.6)	17.3 (1.0)
Secondary psychopaths (n=6)	30.0 (4.9)	83	98.2 (11.2)	31.0 (2.0)	22.7 (7.7)	10.4 (1.3)	17.3 (1.5)
Non-psychopaths (n=22)	35.1 (6.9)	95	104.2 (11.2)	14.5 (3.3)	13.6 (9.6)	5.2 (2.1)	7.6 (3.6)