title: The Crack Use Relapse Scale (CURS): development and psychometric validation.
abstract: OBJECTIVE
  To report the development and validation of the Crack Use Relapse Scale (CURS) in an inpatient population.
  
  
  METHODS
  A pilot study with 30 male crack users was conducted to generate 35 sentences related to the construct of interest. A five-point Likert scale including 25 items and, initially, nine theoretical factors was generated and utilized in a cross-sectional study with a sample of 333 hospitalized male crack users.
  
  
  RESULTS
  Overall Cronbach's alpha was α = 0.86. The exploratory factor analysis (EFA) with oblimin rotation kept the 25 items (factor loadings > 0.40) and six definitive factors, which explained 62.1% of the total variance.
  
  
  CONCLUSIONS
  The six-factor model yielded by the EFA of the CURS reflects the various dimensions of the construct, assigning satisfactory values and demonstrating good psychometric properties, including validity and reliability.
authors.affiliation: Universidade Federal do Rio Grande do Sul, Centro de Pesquisa em Álcool e Drogas, Porto AlegreRS, Brazil.
authors.forename: Rosemeri
authors.initials: R
authors.lastname: Pedroso
authors.forename: Márcia
authors.initials: M
authors.lastname: Pettenon
authors.forename: Luciano
authors.initials: L
authors.lastname: Guimarães
authors.forename: Félix Henrique
authors.initials: FH
authors.lastname: Kessler
authors.forename: Flavio
authors.initials: F
authors.lastname: Pechansky
mesh_terms: D000293:Adolescent; D000328:Adult; D019970:Cocaine-Related Disorders / Q000523:psychology*; D016578:Crack Cocaine; D003430:Cross-Sectional Studies; D055030:Drug Users; D005163:Factor Analysis, Statistical; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D010865:Pilot Projects; D011594:Psychometrics; D015203:Reproducibility of Results; D055502:Secondary Prevention; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult
chemical_list: D016578:Crack Cocaine