title: [Development of a 12-item version of the OPD-Structure Questionnaire (OPD-SQS)].
abstract: OBJECTIVE
  Screening for personality dysfunction is relevant to treatment planning in psychotherapy, psychosomatic medicine and psychiatry. This makes short versions of field-tested approaches such as the OPD Structure Questionnaire (OPD-SQ) necessary.
  
  
  METHODS
  With the aim of developing a screening version, the original sample of the OPD-SQ was divided into two subsamples. After developing a preliminary 12-item version in one subsample, we used confirmatory factor-analysis in the second subsample as well as an independent sample to test the factor structure.
  
  
  RESULTS
  The analyses confirmed a structure of three correlating factors with adequate fit indices. Other findings relating to the validity of the long version were replicated as well. In addition, data from an independent sample of psychotherapy inpatients confirmed the factor structure and provided further evidence for its validity.
  
  
  CONCLUSIONS
  The OPD-SQS is a viable screening instrument for supporting clinical decision making in stepped-care approaches in psychotherapy, psychosomatic medicine and psychiatry.
authors.affiliation: Klinik für Allgemeine Innere Medizin und Psychosomatik, Universitätsklinikum Heidelberg, Thibautstr. 2, 69115 Heidelberg.
authors.forename: Johannes C
authors.initials: JC
authors.lastname: Ehrenthal
authors.forename: Ulrike
authors.initials: U
authors.lastname: Dinger
authors.forename: Henning
authors.initials: H
authors.lastname: Schauenburg
authors.forename: Lena
authors.initials: L
authors.lastname: Horsch
authors.forename: Reiner W
authors.initials: RW
authors.lastname: Dahlbender
authors.forename: Benjamin
authors.initials: B
authors.lastname: Gierk
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010554:Personality Disorders / Q000175:diagnosis* / Q000523:psychology* / Q000628:therapy; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
keywords: DSM; Levels of Personality Functioning; OPD; Personality Disorders; Questionnaire