Table 2.

Factor loadings of Impulsive/Premeditated Aggression Scale (IPAS).

IPAS Items	Impulsive	Premeditated
30. Anything could have set me off prior to the incidents	0.63	–
27. I was in a bad mood the day of the incident	0.66	–
22. I was confused during the acts	0.79	–
9. I feel I lost control of my temper during the acts	0.80	–
24. My behavior was too extreme for the level of provocation	0.72	–
15. I became agitated or emotionally upset prior to the acts	0.72	–
26. I consider the acts to have been impulsive	0.66	–
4. I typically felt guilty after the aggressive acts	0.73	–
7. I usually can’t recall the details of the incidents well	0.50	–
13. I feel some of the incidents went too far	0.72	–
6. I feel my actions were necessary to get what I wanted	–	0.58
14. I think the other person deserved what happened to them during some of the incidents	–	0.65
29. I am glad some of the incidents occurred	–	0.64
28. The acts were a “release” and I felt better afterward	–	0.75
2. I felt my outbursts were justified	–	0.70
23. Prior to the incidents I knew an altercation was going to occur	–	0.55
12. I wanted some of the incidents to occur	–	0.80
16. The acts led to power over others or improved social status for me	–	0.72
20. Some of the acts were attempts at revenge	–	0.75
10. Sometimes I purposely delayed the acts until a later time	–	0.63
1. I planned when and where my anger was expressed	–	0.64
Eigenvalues	7.19	3.29
Variance (%)	34.27	15.65
Cronbach’s alpha	0.89	0.88