title: [Self-rating scales in schizophrenia: assessment of the reliability of the Paranoid-Depressive Scale (PD-S) Frankfurt Self-feeling Scale (FBS). and two visual analogy scales].
abstract: OBJECTIVE
  To assess the reliability of the Paranoid-Depressive Scale (PD-S, Paranoid-Depresivitäts-Skala), the Frankfurt Self-feeling Scale (FBS, Frankfurter Befindlichkeitsskala), and of two visual analogy scales of a sense of illness (WAC) and of self-feeling (WAS).
  
  
  METHODS
  210 patients with schizophrenia of various clinical courses.
  
  
  METHODS
  All patients in the study group were required to complete each scale twice (test-retest) at 48hr intervals, in order to assess each method's reproducibility. In addition, the two complex questionnaire scales were analysed for internal coherence.
  
  
  RESULTS
  Spearman's rho correlation coefficient for reproducibility was found to be very high for all the scales. Also, the Cronbach's alpha coefficient for internal coherence was found to be acceptably high for both complex questionnaire scales, with reference to the scales as a whole, as well as to their dimensions (paranoid and depression dimensions of the PD-S).
  
  
  CONCLUSIONS
  Patients suffering from schizophrenia can reliably use the above-mentioned scales.
authors.affiliation: I Kliniki Psychiatrycznej IPiN w Warszawie.
authors.forename: Ewa
authors.initials: E
authors.lastname: Schaeffer
authors.forename: Jacek
authors.initials: J
authors.lastname: Wciórka
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012649:Self Concept; D012647:Self-Assessment; D012680:Sensitivity and Specificity