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Normative data and psychometric properties of the parent and teacher versions of the strengths and difficulties questionnaire (SDQ) in an Iranian community sample.

This article is from Journal of Research in Medical Sciences : The Official Journal of Isfahan University of Medical Sciences , volume 14 . Abstract BACKGROUND:: Strengths and difficulties questionnaire (SDQ) is a widely used instrument for screening mental problems in children and adolescents. The main aim of this study was to evaluate the validity and psychometric properties of this questionnaire in comparison with the children behavior checklist (CBCL) and psychiatric interview. METHODS:: The study was done in two stages. At stage one, 600 children aged between 6 and 12 were evaluated using the parent and teacher versions of SDQ and CBCL. At stage two, 25 children with the scores above the cut point reported by the developer of SDQ and 27 children with the score below this point were selected to be interviewed by a child and adolescent psychiatrist according to Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) classification and by another clinician using the K-SADS-PL (Schedule for Affective Disorders and Schizophrenia for School-Age Children- Present and Lifetime Version) as a semi structured interview. RESULTS:: The mean scores of SDQ subscales found

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