title: [Validation of the Hungarian version of the Strengths and Difficulties Questionnaire in an adolescent clinical population].
abstract: BACKGROUND
  The short Strengths and Difficulties Questionnaire (SDQ) available in parent, teacher and self-report versions, is used world-wide for assessing and screening childhood behavior and mental problems, as part of clinical assessments, therapy outcome evaluations, and research tool. The aim of the present study was to extend the use of Hungarian version to a clinical sample, to examine the clinical cut-off values suggested previously on the basis of a normative sample, and to test the questionnaire's sensitivity in differentiating between different psychiatric disorders.
  
  
  METHODS
  The parent and self-report versions of the five scale SDQ-Magy questionnaire was filled in by 716 parents and their children admitted to Vadaskert Child Psychiatry and Outpatient Clinic. Clinical (ICD) diagnoses were determined during psychiatric examination.
  
  
  RESULTS
  With a few exceptions, internal consistencies of the scales were satisfactory (0,55-0,79), the parent version showing greater reliability compared to the self-report version. Children's age, gender, and parents' level of education had some effect on the scale scores. The questionnaire's Total problem and symptom scale scores were very effective in discriminating between the control and the clinical sample. In the clinical sample, parents rated their children's behavior and mental problems as more severe. Profiles of scale scores distinguished the wider internalizing, externalizing, and co-morbid diagnostic categories, as well as the eight specific diagnoses. Based on the normal-abnormal cut-off values proposed earlier (Turi et al., 2011), the great majority of clinical cases were screened by the questionnaire.
  
  
  CONCLUSIONS
  The Hungarian version of the SDQ proved applicable in a clinical sample. Psychometric properties, variances due to age, gender and informant were consistent with international experiences. SDQ profiles related to clinical diagnoses and their difference from the control group show the sensitivity and discriminative power of the questionnaire, while the screening ability based on clinical cut-offs also supports the clinical use of the questionnaire.
authors.affiliation: Vadaskert Gyermek- és Ifjúságpszichiátriai Kórház, Hungary.
authors.forename: Eszter
authors.initials: E
authors.lastname: Turi
authors.forename: Judit
authors.initials: J
authors.lastname: Gervai
authors.forename: Nikolett
authors.initials: N
authors.lastname: Áspán
authors.forename: József
authors.initials: J
authors.lastname: Halász
authors.forename: Péter
authors.initials: P
authors.lastname: Nagy
authors.forename: Júlia
authors.initials: J
authors.lastname: Gádoros
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis; D002653:Child Behavior Disorders / Q000175:diagnosis* / Q000523:psychology; D002665:Child Psychiatry / Q000379:methods* / Q000639:trends; D003937:Diagnosis, Differential; D004522:Educational Status; D005178:Faculty; D005260:Female; D006801:Humans; D006814:Hungary; D008297:Male; D010290:Parents; D011237:Predictive Value of Tests; D011594:Psychometrics; D015203:Reproducibility of Results; D057566:Self Report; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires / Q000592:standards*