Reliability, validity, and preliminary normative data for the Children's Aggression Scale-Teacher Version.
OBJECTIVE
To provide preliminary psychometric data on the Children's Aggression Scale-Teacher Version (CAS-T), which was designed to assess severity and frequency of aggressive, as distinct from nonaggressive, disruptive behaviors.


METHODS
The CAS-T has 23 items representing five domains: Verbal aggression, Aggression against objects and animals, Provoked physical aggression, Unprovoked physical aggression, and Use of weapons. The CAS-T was completed for 273 nonreferred boys and 67 clinically referred children (60 boys; 7 girls). Coefficient alpha was assessed separately in clinical and nonreferred groups. Validity was evaluated by comparing CAS-T scores of children with different disruptive behavior disorder diagnoses and by examining the relationship of CAS-T scores to other parent and teacher ratings.


RESULTS
The scale as a whole had excellent reliability as measured by coefficient alpha. Children with conduct disorder were rated significantly higher than those with oppositional defiant disorder, attention-deficit/hyperactivity disorder, and no disruptive behavior disorder diagnosis. Further, patterns of correlations with other rating scales provide strong support for the convergent and discriminant validity of the CAS-T.


CONCLUSIONS
The CAS-T may fill a gap in that it distinguishes among various types and severity of aggression, as distinct from oppositional-defiant behaviors.
Halperin
Jeffrey M
JM
Department of Psychology, Queens College of the City University of New York, USA. jeffrey_halperin@qc.edu
McKay
Kathleen E
KE
Grayson
Richard H
RH
Newcorn
Jeffrey H
JH
D000374:Aggression; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis; D019958:Attention Deficit and Disruptive Behavior Disorders / Q000175:diagnosis; D002675:Child, Preschool; D019955:Conduct Disorder / Q000175:diagnosis; D006801:Humans; D008297:Male; D012016:Reference Values; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013663:Teaching; D000078329:Workforce