title: Psychometric properties of the DY-BOCS in a Turkish sample of children and adolescents.
abstract: BACKGROUND
  Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS) is a promising scale for assessing frequency and severity of symptom dimensions. The main objective of the study was to assess the psychometric properties of the DY-BOCS in a large sample of children and adolescents from Turkey.
  
  
  METHODS
  We studied 143 children and adolescents, 7-18years, with well characterized DSM-IV-R OCD, ascertained from seven collaborating university or state hospital sites. We compared the DY-BOCS scores with the Children's Yale-Brown Obsessive-Compulsive Scale (CY-BOCS), the Children's Depression Inventory (CDI), the Yale Global Tic Severity Scale (YGTSS) and the Child Behavior Checklist 6-18years (CBCL 6-18).
  
  
  RESULTS
  The internal consistency of the DY-BOCS symptom dimensions and inter-rater agreement of component scores were excellent. The agreement between global DY-BOCS score and the total CY-BOCS score was highly significant (Pearson's r=0.55, p<0.0001). Severity scores for individual symptom dimensions were independent of one another, only modestly correlating with the global ratings, and were also differentially related to ratings of depression, anxiety and tic severity.
  
  
  CONCLUSIONS
  The DY-BOCS is a reliable and valid instrument for assessing multiple aspects of OCD symptom severity in children and adolescents from Turkey.
authors.affiliation: Cumhuriyet University Faculty of Medicine Department of Child and Adolescent Psychiatry, Sivas, Turkey. Electronic address: selcenguler@yahoo.com.
authors.forename: Ayşegül Selcen
authors.initials: AS
authors.lastname: Güler
authors.affiliation: Federal University of São Paulo Department of Child and Adolescent Psychiatry, São Paulo, Brazil.
authors.forename: Maria Conceição
authors.initials: MC
authors.lastname: do Rosário
authors.affiliation: Sakarya Training and Research Hospital, Sakarya, Turkey.
authors.forename: Ayşe Burcu
authors.initials: AB
authors.lastname: Ayaz
authors.affiliation: Erenköy Hospital for Mental Health, İstanbul, Turkey.
authors.forename: Sebla
authors.initials: S
authors.lastname: Gökçe
authors.affiliation: Tekirdağ Training and Research Hospital, Tekirdağ, Turkey.
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Yulaf
authors.affiliation: Göztepe Training and Research Hospital, İstanbul, Turkey.
authors.forename: Senem
authors.initials: S
authors.lastname: Başgül
authors.affiliation: İnönü University Faculty of Medicine Department of Child and Adolescent Psychiatry, Malatya, Turkey.
authors.forename: Özlem
authors.initials: Ö
authors.lastname: Özcan
authors.affiliation: Ondokuz Mayıs University Faculty of Medicine Department of Child and Adolescent Psychiatry, Samsun, Turkey.
authors.forename: Koray
authors.initials: K
authors.lastname: Karabekiroğlu
authors.affiliation: Boston Children's Hospital Division of Developmental Medicine, Boston, MA, USA.
authors.forename: Kerim
authors.initials: K
authors.lastname: Munir
authors.affiliation: Katip Çelebi University Faculty of Medicine Department of Psychiatry, İzmir, Turkey.
authors.forename: Lütfullah
authors.initials: L
authors.lastname: Beşiroğlu
authors.affiliation: Marmara University Faculty of Medicine Department of Child and Adolescent Psychiatry, İstanbul, Turkey.
authors.forename: Yankı
authors.initials: Y
authors.lastname: Yazgan
mesh_terms: D000293:Adolescent; D001007:Anxiety / Q000523:psychology; D002648:Child; D003863:Depression / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis / Q000523:psychology*; D011594:Psychometrics; D015203:Reproducibility of Results; D012494:Sampling Studies; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires / Q000592:standards*; D014421:Turkey