The Conners-28 teacher questionnaire in clinical and nonclinical samples of Greek children 6-12 years old.

It is accepted practice in child psychiatry to use more than one source of information in assessing behavioural problems in children and adolescents. Employing standardized tools for these assessments allows cross-cultural comparisons and better interchange of the findings. Achenbach's Child Behavior Checklist (CBCL) and Teacher's Report Form (TRF) are two widely accepted instruments that were standardized in Greece within the framework of the European Network for the Study of Hyperkinetic Disorder.

Achenbach's Child Behavior Checklist and Teachers' Report Form in a normative sample of Greek children 6-12 years old.

Achenbach's Child Behavior Checklist (CBCL) and Teachers' Report Form (TRF) were administered to 6-12 year old school children comprising a large random community sample (n = 1200) drawn from the whole of Greece. These are the first data on the TRF in Greece and the first nation-wide data on the CBCL. Appropriate cutoff points for the behavioral problems and competence scales of both questionnaires were obtained for boys and girls.