title: Structured assessment of current mental state in clinical practice: an international study of the reliability and validity of the Current Psychiatric State interview, CPS-50.
abstract: OBJECTIVE
  To develop a reliable standardized assessment of psychiatric symptoms for use in clinical practice.
  
  
  METHODS
  A 50-item interview, the Current Psychiatric State 50 (CPS-50), was used to assess 237 patients with a range of psychiatric diagnoses. Ratings were made by interviewers after a 2-day training. Comparisons of inter-rater reliability on each item and on eight clinical subscales were made across four international centres and between psychiatrists and non-psychiatrists. A principal components analysis was used to validate these clinical scales.
  
  
  RESULTS
  Acceptable inter-rater reliability (intra-class coefficient > 0.80) was found for 46 of the 50 items, and for all eight subscales. There was no difference between centres or between psychiatrists and non-psychiatrists. The principal components analysis factors were similar to the clinical scales.
  
  
  CONCLUSIONS
  The CPS-50 is a reliable standardized assessment of current mental status that can be used in clinical practice by all mental health professionals after brief training.
authors.affiliation: OTP European Coordinating Centre, ARIETE, Perugia, Italy. 100130.3310@compuserve.com
authors.forename: I R H
authors.initials: IR
authors.lastname: Falloon
authors.forename: M
authors.initials: M
authors.lastname: Mizuno
authors.forename: M
authors.initials: M
authors.lastname: Murakami
authors.forename: R
authors.initials: R
authors.lastname: Roncone
authors.forename: Z
authors.initials: Z
authors.lastname: Unoka
authors.forename: J
authors.initials: J
authors.lastname: Harangozo
authors.forename: J
authors.initials: J
authors.lastname: Pullman
authors.forename: R
authors.initials: R
authors.lastname: Gedye
authors.forename: T
authors.initials: T
authors.lastname: Held
authors.forename: B
authors.initials: B
authors.lastname: Hager
authors.forename: D
authors.initials: D
authors.lastname: Erickson
authors.forename: K
authors.initials: K
authors.lastname: Burnett
mesh_terms: D003431:Cross-Cultural Comparison; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D006801:Humans; D007318:Inservice Training; D038801:International Classification of Diseases; D007406:Interview, Psychological; D001523:Mental Disorders / Q000175:diagnosis*; D015588:Observer Variation; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D011594:Psychometrics / Q000706:statistics & numerical data; D011618:Psychotic Disorders / Q000175:diagnosis / Q000523:psychology; D015203:Reproducibility of Results; D013223:Statistics as Topic