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Related Experiment Videos

Reliability, validity, and preliminary normative data for the Children's Aggression Scale-Teacher Version.

Jeffrey M Halperin1, Kathleen E McKay, Richard H Grayson

  • 1Department of Psychology, Queens College of the City University of New York, USA. jeffrey_halperin@qc.edu

Journal of the American Academy of Child and Adolescent Psychiatry
|July 23, 2003
PubMed
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The Children's Aggression Scale-Teacher Version (CAS-T) shows excellent reliability and validity in assessing aggressive behaviors in children. It effectively differentiates between types and severity of aggression, aiding in clinical diagnosis.

Area of Science:

  • Child Psychology
  • Psychometric Assessment
  • Behavioral Science

Background:

  • Aggressive behaviors in children present a significant challenge in clinical and educational settings.
  • Existing assessment tools may not adequately differentiate between various forms of aggression and other disruptive behaviors.

Purpose of the Study:

  • To present initial psychometric data for the Children's Aggression Scale-Teacher Version (CAS-T).
  • To evaluate the CAS-T's ability to measure the severity and frequency of aggressive behaviors, distinguishing them from nonaggressive disruptive behaviors.

Main Methods:

  • The CAS-T, comprising 23 items across five domains (verbal aggression, aggression against objects/animals, provoked/unprovoked physical aggression, weapon use), was administered to 273 nonreferred and 67 clinically referred children.

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  • Reliability was assessed using coefficient alpha, and validity was examined through comparisons with disruptive behavior disorder diagnoses and other rating scales.

    • Main Results:

    • The CAS-T demonstrated excellent reliability (coefficient alpha).
    • Children diagnosed with conduct disorder scored significantly higher on the CAS-T than those with oppositional defiant disorder, ADHD, or no disorder.
    • Correlations with other scales supported the CAS-T's convergent and discriminant validity.

    Conclusions:

    • The CAS-T appears to be a reliable and valid instrument for assessing aggression in children.
    • The scale effectively distinguishes between different types and severities of aggression, differentiating them from oppositional-defiant behaviors.