title: Validation of the Spanish version of the Dimensional Yale-Brown Obsessive-Compulsive Scale (DYBOCS) in children and adolescents.
abstract: Obsessive-compulsive disorder (OCD) is best understood as a complex overlap of obsessive-compulsive (OC) symptom dimensions with specific clinical and etiological characteristics. The Dimensional Yale-Brown Obsessive-Compulsive Scale (DYBOCS) was developed to assess the presence and severity of each of these OC symptom dimensions. Despite showing excellent psychometric properties in adults, the psychometric properties of the DYBOCS have not been widely investigated in children and adolescents.
  
  
  
  We examined the psychometric properties of the DYBOCS Spanish version in a sample of 97 OCD children and adolescents.
  
  
  
  The results of the psychometric analyses were excellent overall. The internal consistency for each OC symptom dimension was high, although somewhat lower than in previous studies with adult samples. The DYBOCS showed overall good convergent and divergent validity. Factors obtained from a principal component analysis corresponded with the five DYBOCS dimensions (aggressive; sexual/religious; contamination; symmetry; and hoarding) and each one accounted for approximately 20% of the variance.
  
  
  
  The DYBOCS is a valid instrument for assessing the frequency and severity of OC symptom dimensions in children and adolescents with OCD. The principal component analysis supported the division of OC symptoms into five dimensions. OCD is a heterogeneous disorder, and a dimensional approach can help to understand its clinical, etiological and treatment response characteristics.
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, c/ Villarroel 170, 08036 Barcelona, Spain.
authors.forename: B
authors.initials: B
authors.lastname: Garcia-Delgar
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, c/ Villarroel 170, 08036 Barcelona, Spain.
authors.forename: A E
authors.initials: AE
authors.lastname: Ortiz
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, c/ Villarroel 170, 08036 Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación en Red de Salud Mental (CIBERSAM), Instituto Carlos III, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Morer
authors.affiliation: Centro de Investigación en Red de Salud Mental (CIBERSAM), Instituto Carlos III, Spain; Obsessive-Compulsive Clinical and Research Unit, Department of Psychiatry, Hospital de Bellvitge, Hospitalet de Llobregat, Feixa Llarga s/n, 08907, Hospitalet de Llobregat, Barcelona, Spain; Bellvitge Biomedical Research Institute-IDIBELL & Department of Clinical Sciences, Bellvitge Campus, University of Barcelona, Barcelona, Spain.
authors.forename: P
authors.initials: P
authors.lastname: Alonso
authors.affiliation: Child and Adolescent Psychiatry Unit (UPIA), Department of Psychiatry, Federal University of São Paulo (UNIFESP), Rua Pedro de Toledo 590, 04038-020, São Paulo, Brazil.
authors.forename: M C
authors.initials: MC
authors.lastname: do Rosário
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, c/ Villarroel 170, 08036 Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación en Red de Salud Mental (CIBERSAM), Instituto Carlos III, Spain; Department of Psychiatry and Clinical Psychobiology, University of Barcelona, c/ Casanova 143, 08036 Barcelona, Spain. Electronic address: LLAZARO@clinic.ub.es.
authors.forename: L
authors.initials: L
authors.lastname: Lázaro
mesh_terms: D000293:Adolescent; D000374:Aggression; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests / Q000592:standards*; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology*; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D012725:Sexual Behavior / Q000523:psychology; D013030:Spain / Q000453:epidemiology