title: Psychometric properties and factor structure of the readiness to change questionnaire.
abstract: OBJECTIVE
  This study is aimed at describing the psychometric properties and factor structure of the Swedish version of the Readiness to Change Questionnaire (RTCQ). Originally, the questionnaire included three factors (Precontemplation, Contemplation and Action) in a model that intends to measure stages of change.
  
  
  METHODS
  Patients at an emergency ward were screened for hazardous alcohol consumption and patients who met risk criteria and responded to the RTCQ were included in the study (n = 165). A confirmatory factor analysis proved to be slightly more suitable for a three-factor solution, compared to the one-factor solution.
  
  
  RESULTS
  The three scales reflecting the three factors showed satisfactory reliability.
  
  
  CONCLUSIONS
  The presented data give no support for abandoning the original use of the test.
authors.affiliation: Department of Clinical Neuroscience, Section of Clinical Alcohol and Drug Addiction Research, Division of Social Medicine, Karolinska Institutet, Stockholm, Sweden.
authors.forename: Lars
authors.initials: L
authors.lastname: Forsberg
authors.forename: Jan
authors.initials: J
authors.lastname: Halldin
authors.forename: Peter
authors.initials: P
authors.lastname: Wennberg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000428:Alcohol Drinking / Q000453:epidemiology / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D011594:Psychometrics / Q000379:methods*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013548:Sweden / Q000453:epidemiology; D013695:Temperance