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The Aggression Questionnaire: a validation study in student samples.

Ana García-León1, Gustavo A Reyes, Jaime Vila

  • 1Dpto. de Psicología, Facultad de Humanidades y Ciencias de la Educación, Universidad de Jaén, Paraje de las Lagunillas, s/n. 23071 Jaén, Spain. angarcia@ujaen.es

The Spanish Journal of Psychology
|May 25, 2002
PubMed
Summary

This study validated the Aggression Questionnaire (AQ) in Spain, confirming its reliability and ability to measure anger and aggression dimensions. The AQ effectively differentiated between offenders and university students, supporting its use in psychological assessments.

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Area of Science:

  • Psychology
  • Psychometrics

Background:

  • The Aggression Questionnaire (AQ) is a 29-item instrument measuring anger, hostility, verbal aggression, and physical aggression.
  • Validating psychological instruments in diverse populations is crucial for accurate assessment.

Purpose of the Study:

  • To examine the psychometric properties of the Aggression Questionnaire (AQ) in a Spanish sample.
  • To assess the reliability, construct validity, convergent validity, and criterion validity of the AQ.

Main Methods:

  • Study 1: Evaluated reliability and validity in 384 university students; assessed test-retest reliability in 154 students.
  • Study 2: Assessed criterion validity by comparing scores of 57 prison inmates and 93 university students.
  • Factor analysis and comparisons with established anger/aggression scales (STAXI, Ho, BDHI, JASE-H) were employed.

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Main Results:

  • Factor analysis supported the AQ's claimed scale structure.
  • The AQ demonstrated good internal consistency and temporal stability.
  • Convergent validity was supported by comparisons with other scales, indicating the AQ measures Anger-Trait and Anger-Out.
  • Criterion validity was confirmed, as the AQ distinguished between offenders and university students.

Conclusions:

  • The Aggression Questionnaire (AQ) is a reliable and valid instrument for assessing aggression and its dimensions in Spain.
  • The findings support the use of the AQ for differentiating between groups with varying levels of aggression, such as offenders and non-offenders.