title: Cross-cultural adaptation, validation and reliability of the brazilian version of the Richmond Compulsive Buying Scale.
abstract: OBJECTIVE
  To present the process of transcultural adaptation of the Richmond Compulsive Buying Scale to Brazilian Portuguese.
  
  
  METHODS
  For the semantic adaptation step, the scale was translated to Portuguese and then back-translated to English by two professional translators and one psychologist, without any communication between them. The scale was then applied to 20 participants from the general population for language adjustments. For the construct validation step, an exploratory factor analysis was performed, using the scree plot test, principal component analysis for factor extraction, and Varimax rotation. For convergent validity, the correlation matrix was analyzed through Pearson's coefficient.
  
  
  RESULTS
  The scale showed easy applicability, satisfactory internal consistency (Cronbach's alpha=.87), and a high correlation with other rating scales for compulsive buying disorder, indicating that it is suitable to be used in the assessment and diagnosis of compulsive buying disorder, as it presents psychometric validity.
  
  
  CONCLUSIONS
  The Brazilian Portuguese version of the Richmond Compulsive Buying Scale has good validity and reliability.
authors.affiliation: Institute of Psychology Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Brazil. priscilla.ufrj@gmail.com
authors.forename: Priscilla
authors.initials: P
authors.lastname: Leite
authors.forename: Bernard
authors.initials: B
authors.lastname: Rangé
authors.forename: Monika
authors.initials: M
authors.lastname: Kukar-Kiney
authors.forename: Nancy
authors.initials: N
authors.lastname: Ridgway
authors.forename: Kent
authors.initials: K
authors.lastname: Monroe
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Ribas Junior
authors.forename: J
authors.initials: J
authors.lastname: Landeira Fernandez
authors.forename: Antonio Egidio
authors.initials: AE
authors.lastname: Nardi
authors.forename: Adriana
authors.initials: A
authors.lastname: Silva
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001938:Brazil; D003132:Commerce; D003192:Compulsive Behavior / Q000175:diagnosis*; D003466:Cultural Characteristics; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires / Q000592:standards*; D014175:Translating