title: Validity and reliability of the Brazilian version of Yale-Brown obsessive compulsive scale-shopping version (YBOCS-SV).
abstract: BACKGROUND
  The Yale-Brown Obsessive Compulsive Scale-Shopping Version (YBOCS-SV) is considered the gold standard in the assessment of shopping severity. It is designed to assess cognitions and behaviors relating to compulsive buying behavior. The present study aims to assess the validity of the Brazilian version of this scale.
  
  
  METHODS
  For the study, composed the sample 610 participants: 588 subjects of a general population and 22 compulsive buyers. Factorial analysis was performed to assess the relations and the correlation between the YBOCS-SV, the Compulsive Buying Scale (CBS), and Richmond Compulsive Buying Scale (RCBS), was assessed using Pearson coefficient, for study of convergent and divergent validity. Cronbach's alpha coefficients were used to assess internal consistency.
  
  
  RESULTS
  The results show good to excellent psychometric parameters for the YBOCS-SV in its Brazilian version. With regard to correlations, the YBOCS-SV is inversely and proportionally correlated with CBS and the RCBS, indicating that the YBOCS-SV is an excellent instrument for screening compulsive buying. The YBOCS-SV presented high alpha coefficient of Cronbach's alpha (0.92), demonstrating good reliability.
  
  
  CONCLUSIONS
  The Brazilian version of the YBOCS-SV is indicated to diagnose compulsive buying disorder, and likely use for the purposes intended in the Brazilian population.
authors.affiliation: Laboratory of Panic and Respiration, Post-Graduate Program in Psychiatry and Mental Health at Institute of Psychiatry Psychiatric Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-901, Brazil. Electronic address: priscilla.ufrj@gmail.com.
authors.forename: Priscilla Lourenço
authors.initials: PL
authors.lastname: Leite
authors.affiliation: Departament of Psychiatry, University of São Paulo (USP), São Paulo, Estado de São Paulo, Brazil.
authors.forename: Tatiana Zambrano
authors.initials: TZ
authors.lastname: Filomensky
authors.affiliation: University of Iowa Roy J. and Lucille A. Carver College of Medicine.
authors.forename: Donald W
authors.initials: DW
authors.lastname: Black
authors.affiliation: Laboratory of Panic and Respiration, Post-Graduate Program in Psychiatry and Mental Health at Institute of Psychiatry Psychiatric Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-901, Brazil.
authors.forename: Adriana Cardoso
authors.initials: AC
authors.lastname: Silva
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D003132:Commerce; D003192:Compulsive Behavior; D003258:Consumer Behavior; D005260:Female; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000523:psychology*; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D014177:Translations