title: Development of a Reliable and Valid Organ Tissue Donation and Transplantation Knowledge Scale.
abstract: BACKGROUND
  Knowledge has an important role in an individual's willingness to donate organs upon death. Knowledge enables clarification of false beliefs, which can increase willingness to consent to organ donation. The purpose of the study was to describe and examine the validity and reliability of the Organ-Tissue Donation and Transplantation Knowledge Scale (ODTKS).
  
  
  METHODS
  We performed a comprehensive literature review and chose 23 items for the scale according to specialists' recommendations. A total of 6 items were excluded from the scale. Finally, the scale consisted of 17 items and 2 subdimensions.
  
  
  RESULTS
  The study group consisted of 540 (267 [49.4%] male and 273 [50.6%] female) nonmedical staff members; 23.5% were primary school graduates, 47.6% were high school graduates, and 28.9% had university degrees or higher. The difficulty index and discrimination index of the overall scale were 22.41% to 54.07% and 0.23 to 0.46, respectively. Cronbach α coefficient was 0.88 overall. Retest reliability scores were significant (r = 0.87, P < .001).
  
  
  CONCLUSIONS
  The total score of the ODTKS was significantly higher among university graduates compared with primary school graduates and among people willing to donate. The ODTKS therefore has adequate reliability and validity for evaluating Turkish adults' knowledge about organ tissue donation and transplantation.
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey. Electronic address: dr.gulsum.ozturk@gmail.com.
authors.forename: G
authors.initials: G
authors.lastname: Ozturk Emiral
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey.
authors.forename: B
authors.initials: B
authors.lastname: Isıktekin Atalay
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey.
authors.forename: H
authors.initials: H
authors.lastname: Altunok
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey.
authors.forename: M E
authors.initials: ME
authors.lastname: Gokler
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey.
authors.forename: M F
authors.initials: MF
authors.lastname: Onsuz
authors.affiliation: Public Health Department, School of Medicine, Eskisehir Osmangazi University, Meselik-Eskisehir, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Metintas
mesh_terms: D000328:Adult; D004522:Educational Status; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014019:Tissue Donors; D009927:Tissue and Organ Procurement; D014180:Transplantation / Q000523:psychology; D014421:Turkey; D055815:Young Adult