title: [Spanish version of the personality diagnostic questionnaire-4+ (PDQ-4+)].
abstract: BACKGROUND
  The Personality Diagnostic Questionnaire is one of the most frequently used instruments for diagnosing personality disorders (PD). Its last version (PDQ-4+) combines the easy applicability of a questionnaire with the control of state symptoms interference of an interview. The aim of this paper is to present preliminary results on the Spanish version of the PDQ-4+.
  
  
  METHODS
  159 psychiatric outpatients were assessed using the questionnaire of PDQ-4+. Among them, a sample of 47 were also evaluated using the short interview of clinical significance that completed the PDQ-4+.
  
  
  RESULTS
  Results obtained were very similar to that from previous research, indicating similar psychometric properties of the PDQ-4+ Spanish version, to English, Italian, Chinese and Norway versions. In general, the internal consistency was acceptable; the obsessive-compulsive PD scale showing the lowest Cronbach's alpha. The high prevalence of PD obtained with the PDQ-4+ questionnaire was dramatically reduced when the clinical significance scale was added. These results are in more agreement with previous epidemiological studies.
  
  
  CONCLUSIONS
  Overall, the PDQ-4+ questionnaire seems a good screening instrument in clinical use. Best results are obtained when the clinical significance scale is also administered.
authors.affiliation: Unidad de Psicología Médica, Universidad Autónoma de Barcelona, Centro de Psicología Clínica, St. Boi del Llobregat. Barcelona, Spain. nataliac@copc.es
authors.forename: N
authors.initials: N
authors.lastname: Calvo Piñero
authors.forename: X
authors.initials: X
authors.lastname: Caseras Vives
authors.forename: F
authors.initials: F
authors.lastname: Gutiérrez Ponce De León
authors.forename: R
authors.initials: R
authors.lastname: Torrubia Beltri
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D010554:Personality Disorders / Q000175:diagnosis*; D010555:Personality Inventory; D011594:Psychometrics; D015203:Reproducibility of Results; D014177:Translations