Abstract
The concept of a dichotomous versus a continuous aggression model continues to be debated within the research literature. The Impulsive/Premeditated Aggression Scale (IPAS; M. S. Stanford, R. J. Houston, C. W. Mathias, et al., 2003) is a newly developed self-report instrument designed to classify an individual's aggressive behavior as predominantly premeditated or predominantly impulsive. The IPAS consists of 30-items that are scored on a 5-point Likert scale. This study used a nonrandom sample of convenience (N = 85) from a forensic state hospital. Principal-components analysis of the 30 items revealed 2 distinct factors (Impulsive and Premeditated Aggression), which accounted for 33% of the variance. The results of this study further validate the bimodal classification of aggression through its application to a forensic sample. The implications for general assessment, diagnosis, and treatment are discussed.
Original language | English (US) |
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Pages (from-to) | 80-85 |
Number of pages | 6 |
Journal | American Journal of Orthopsychiatry |
Volume | 76 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2006 |
Keywords
- Aggression
- Forensic
- IPAS
- Impulsive
- Premeditated
ASJC Scopus subject areas
- Developmental and Educational Psychology
- Arts and Humanities (miscellaneous)
- Psychology (miscellaneous)
- Psychiatry and Mental health