title: The thought disorder questionnaire.
abstract: OBJECTIVE
  To describe the development of the Thought Disorder Questionnaire (TDQ), including data on reliability and validity, and to explain the questionnaire's feasibility and diagnostic accuracy.
  
  
  METHODS
  The TDQ has 6 scales, each with 10 items (on a scale from 0 [for never] to 4 [for always]). The 6 scales measure content of thought, control of thought, orientation, perception, fantasy, and symptoms.
  
  
  RESULTS
  The TDQ is a reliable 60-item, self-report questionnaire that measures the quantity and quality of disordered thinking in patients with mental disorders. It has established reliability and validity.
  
  
  CONCLUSIONS
  The TDQ's clinical and research utility remains to be determined.
authors.affiliation: University of British Columbia, Surrey Mental Health Services, Surrey Memorial Hospital, Surrey, British Columbia. ted.waring@sfvhr.hnet.bc.ca
authors.forename: Edward M
authors.initials: EM
authors.lastname: Waring
authors.forename: R W J
authors.initials: RW
authors.lastname: Neufeld
authors.forename: B
authors.initials: B
authors.lastname: Schaefer
mesh_terms: D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D005240:Feasibility Studies; D006801:Humans; D011618:Psychotic Disorders / Q000523:psychology*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013850:Thinking