title: Reliability and validity of teacher-rated symptoms of oppositional defiant disorder and conduct disorder in a clinical sample.
abstract: OBJECTIVE
  It is recommended to use information from multiple informants when making diagnostic decisions concerning oppositional defiant disorder (ODD) and conduct disorder (CD). The purpose of this study was to investigate the reliability and validity of teacher-rated symptoms of ODD and CD in a clinical sample.
  
  
  METHODS
  The sample comprised 421 children (84% boys; 6-17 years) diagnosed with ODD, CD, and/or attention deficit hyperactivity disorder (ADHD). Teachers completed a standardized ODD/CD symptom rating scale and the Teacher Report Form (TRF).
  
  
  RESULTS
  The reliability (internal consistency) of the symptom rating scale was high (α = 0.90). Convergent and divergent validity were demonstrated by substantial correlations with similar TRF syndrome scales and low-to-moderate correlations with dissimilar TRF scales. Discriminant validity was shown by the ability of the symptom rating scale to differentiate between children with ODD/CD and those with ADHD. Factorial validity was demonstrated by principal component analysis, which produced a two-factor solution that is largely consistent with the two-dimensional model of ODD and CD proposed by the Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV-TR, although some CD symptoms representing aggressive behavior loaded on the ODD dimension.
  
  
  CONCLUSIONS
  These findings suggest that DSM-IV-TR-based teacher rating scales are useful instruments for assessing disruptive behavior problems in children and adolescents.
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychotherapy, Medical Faculty, University of Cologne, Cologne, Germany.
authors.forename: Elena
authors.initials: E
authors.lastname: Ise
authors.forename: Anja
authors.initials: A
authors.lastname: Görtz-Dorten
authors.forename: Manfred
authors.initials: M
authors.lastname: Döpfner
mesh_terms: D000293:Adolescent; D000374:Aggression; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000523:psychology; D019958:Attention Deficit and Disruptive Behavior Disorders / Q000175:diagnosis* / Q000523:psychology*; D001526:Behavioral Symptoms / Q000175:diagnosis / Q000523:psychology; D002648:Child; D019955:Conduct Disorder / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results