title: [The measurement of motivational dimensions of OCD: incompleteness and harm avoidance].
abstract: BACKGROUND
  The 20-item Obsessive-Compulsive Trait Core Dimensions Questionnaire (OCTCDQ) assesses two motivational dimensions of OCD, harm avoidance and incompleteness.
  
  
  METHODS
  Psychometric properties and construct validity of a German version were examined in 202 patients with OCD. A shortened and statistically optimized version was developed on the basis of a structural equation modelling approach.
  
  
  RESULTS
  As a confirmatory factor analysis showed a poor model fit for the German translation, the model was revised. The resulting 10-item version (OCTCDQ-R) showed a good fit. Internal consistency is excellent for incompleteness and satisfactory for harm avoidance. Relationships with OCD symptom severity, anxiety, worry and obsessive-compulsive personality traits support the construct validity.
  
  
  CONCLUSIONS
  The OCTCDQ-R is a reliable and valid measure to assess the individual significance of incompleteness and harm avoidance in OCD patients.
authors.affiliation: Institut für Fort- und Weiterbildung in Klinischer Verhaltenstherapie (IFKV), Bad Dürkheim, Germany. dw-ecker@gmx.de
authors.forename: Willi
authors.initials: W
authors.lastname: Ecker
authors.forename: Sascha
authors.initials: S
authors.lastname: Gönner
authors.forename: Katharina
authors.initials: K
authors.lastname: Wilm
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D038801:International Classification of Diseases; D007802:Language; D008297:Male; D009042:Motivation; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis / Q000523:psychology*; D010555:Personality Inventory / Q000706:statistics & numerical data; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires