title: Spanish version of the Dimensional Obsessive-Compulsive Scale (DOCS): psychometric properties and relation to obsessive beliefs.
abstract: OBJECTIVE
  Our main goal was to provide the psychometric properties of the Spanish version of the Dimensional Obsessive-Compulsive Scale (DOCS) in a non-clinical sample (n = 237) and in adult patients with Obsessive-Compulsive Disorder (OCD) (n = 110). We also examined the association between OC symptom dimensions and obsessive beliefs.
  
  
  METHODS
  The psychometric properties involved four steps: reliability, structural validity, convergent and discriminant validity and diagnostic sensitivity. Linear regression analyses were used to assess the associations between OC symptoms and obsessive beliefs.
  
  
  RESULTS
  Exploratory and confirmatory factor analyses replicated the original four-factor structure in both samples. The DOCS showed good performance in terms of internal consistency, test-retest reliability and convergent validity in both samples. The DOCS showed better diagnostic sensitivity than another self-report instrument of OC symptoms, the Obsessive-Compulsive Inventory Revised. Findings of the relationship between obsessive beliefs and OC symptoms revealed that certain obsessive beliefs predicted specific OC symptom dimensions.
  
  
  CONCLUSIONS
  The Spanish version of the DOCS has similar psychometric properties than the original English instrument, although its performance is somewhat better in OCD patients than in students. It will be important to ascertain its ability to discriminate OCD from other associated disorders.
authors.affiliation: OCD Clinical and Research Unit, Department of Psychiatry, Hospital de Bellvitge, Barcelona, Spain; CIBERSAM (Centro de Investigación en Red de Salud Mental), Carlos III Health Institute, Spain; Bellvitge Biomedical Research Institute-IDIBELL, Barcelona, Spain; Department of Clinical Sciences, Bellvitge Campus, University of Barcelona, Barcelona, Spain.
authors.forename: Clara
authors.initials: C
authors.lastname: López-Solà
authors.forename: Fernando
authors.initials: F
authors.lastname: Gutiérrez
authors.forename: Pino
authors.initials: P
authors.lastname: Alonso
authors.forename: Silvia
authors.initials: S
authors.lastname: Rosado
authors.forename: Joan
authors.initials: J
authors.lastname: Taberner
authors.forename: Cinto
authors.initials: C
authors.lastname: Segalàs
authors.forename: Eva
authors.initials: E
authors.lastname: Real
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Menchón
authors.forename: Miquel A
authors.initials: MA
authors.lastname: Fullana
mesh_terms: D000293:Adolescent; D000328:Adult; D003469:Culture; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009770:Obsessive Behavior / Q000523:psychology*; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000523:psychology; D011594:Psychometrics; D015203:Reproducibility of Results; D057566:Self Report; D012720:Severity of Illness Index; D013030:Spain; D014177:Translations