title: [Adaptation and validation of a test on knowledge about diabetes mellitus].
abstract: OBJECTIVE
  To adapt and validate a Spanish language medium test, of theoretical general knowledge of diabetes mellitus (questionnaire from the University of Michigan). To determine the validity of the concurrent and discriminatory content and establish reliability.
  
  
  METHODS
  The study was observational. Validity was verified prior to data collection. To analyse the concurrent and discriminatory validity, a questionnaire was used in personal interview with the patients, and the degree of knowledge evaluated on certain variables.
  
  
  METHODS
  Hospital outpatient endocrinology consultations.
  
  
  METHODS
  167 diabetic patients were chosen at random, from the outpatient visits. 14 patients who had developed hearing, or language problems, or who had problems of a psychological nature, were excluded. Only 1 patient refused to answer the questionnaire.
  
  
  RESULTS
  Validity of the content was confirmed after careful analysis of the questions on the questionnaire by medical specialists in endocrinology. It was found that the test had adequate concurrence (p less than 0.01) when the average general knowledge levels of certain group of patients are compared. It also had acceptable discriminatory validity (r = 0.56: p less than 0.0001) and reliability (alpha: 0.84; p less than 0.45).
  
  
  CONCLUSIONS
  Adaptation and validation has been obtained for a test of theoretical general knowledge on diabetes mellitus, and the test was found to be applicable to the population under study.
authors.affiliation: Unidad Docente de Medicina Familiar y Comunitaria, Hospital Clínico Universitario de Zaragoza.
authors.forename: J M
authors.initials: JM
authors.lastname: Campo
authors.forename: M E
authors.initials: ME
authors.lastname: Vargas
authors.forename: T
authors.initials: T
authors.lastname: Martínez-Terrer
authors.forename: P
authors.initials: P
authors.lastname: Cía
mesh_terms: D000328:Adult; D000368:Aged; D003920:Diabetes Mellitus; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010353:Patient Education as Topic; D013030:Spain; D011795:Surveys and Questionnaires
vernacular_title: Adaptación y validación de un test de conocimientos sobre la diabetes mellitus.