title: [Study of rating scale of mentally prisoner's competency to serve a sentence].
abstract: OBJECTIVE
  To create an instrument to determine the mental prisoners' competency to serve a sentence, which is according with the Chinese legal system.
  
  
  METHODS
  Integrating the Chinese criminal jurisprudence and the authors' forensic psychiatric experience, the research team created an instrument which called Competency to serve a sentence Rating scale firstly, then used the instrument retrospectively, in the end the validity and reliability of the instrument were inspected and, through an diagnostic test, the feasibility of the instrument was evaluated.
  
  
  RESULTS
  Homogeneity reliability of the instrument is 0.8779, the correspondence of the conclusion between the instrument and the expertise is 0.909, except the positive likelihood ratio is 0.0683, the other diagnostic index are better.
  
  
  CONCLUSIONS
  The Competency to serve a sentence Rating Scale is feasible.
authors.affiliation: Institute of Forensic Science, Ministry of Justice, P. R. China, Shanghai 200063, China.
authors.forename: Fu-yin
authors.initials: FY
authors.lastname: Huang
authors.forename: Qin-ting
authors.initials: QT
authors.lastname: Zhang
authors.forename: Cheng-rong
authors.initials: CR
authors.lastname: Lu
mesh_terms: D000328:Adult; D005104:Expert Testimony; D005260:Female; D005555:Forensic Psychiatry; D006801:Humans; D008297:Male; D016743:Mental Competency; D001523:Mental Disorders / Q000175:diagnosis / Q000523:psychology; D028642:Persons with Psychiatric Disorders / Q000331:legislation & jurisprudence* / Q000523:psychology; D011329:Prisoners / Q000523:psychology*; D011569:Psychiatric Status Rating Scales; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D055815:Young Adult