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Characterizing aggressive behavior.

Matthew S Stanford1, Rebecca J Houston, Charles W Mathias

  • 1Department of Psychology, University of New Orleans, Louisiana 70148, USA. mstanfor@uno.edu

Assessment
|June 13, 2003
PubMed
Summary
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This study developed the Impulsive/Premeditated Aggression Scales (IPAS) to differentiate aggressive behavior. Findings indicate most men with anger problems exhibit predominantly impulsive aggression.

Area of Science:

  • Psychology
  • Criminology
  • Behavioral Science

Background:

  • Aggressive behavior is traditionally classified into impulsive and premeditated subtypes.
  • Impulsive aggression involves a loss of behavioral control in response to provocation.
  • Premeditated aggression is a planned, conscious act, not spontaneous.

Purpose of the Study:

  • To develop a clinically useful self-report instrument, the Impulsive/Premeditated Aggression Scales (IPAS).
  • To characterize aggressive behavior as predominantly impulsive or premeditated.
  • To validate the IPAS for clinical and research applications.

Main Methods:

  • Development of the Impulsive/Premeditated Aggression Scales (IPAS) self-report instrument.
  • Assessment of reliability and validity of the IPAS.

Related Experiment Videos

  • Analysis of IPAS scores in men referred for anger management.

    • Main Results:

    • The IPAS demonstrated strong reliability and validity.
    • Two distinct types of aggressive behavior, impulsive and premeditated, were identified.
    • The majority of individuals (90%) in the sample exhibited predominantly impulsive aggression.

    Conclusions:

    • The IPAS is a reliable and valid tool for distinguishing between impulsive and premeditated aggression.
    • Impulsive aggression is the predominant form of aggression in men seeking anger management.
    • The findings support the clinical utility of the IPAS in understanding aggression subtypes.