title: Test-retest reliability of a complex human immunodeficiency virus research questionnaire administered by an Audio Computer-assisted Self-interviewing system.
abstract: OBJECTIVE
  To evaluate the test-retest reliability of a complex questionnaire administered by Audio Computer-assisted Self-interviewing to recently diagnosed human immunodeficiency virus-positive patients.
  
  
  METHODS
  Thirty-seven English-speaking and 32 Spanish-speaking participants completed both test and retest interviews. Pearson correlation coefficients (r) and kappa (kappa) and weighted kappa (kappa) statistics were obtained for individual questions. From these, overall kappa and Pearson correlation coefficients were calculated across all variables and for groups of questions.
  
  
  RESULTS
  Overall measures of reliability were kappa = 0.767, r = 0.728. Some variation in reliability existed for different response formats, question content groups, and languages of the participants. Differences in overall reliability by Spanish compared with English participants were small and not statistically significant.
  
  
  CONCLUSIONS
  Audio Computer-assisted Self-interviewing provides reliable measures for items assessed in the Antiretroviral Treatment and Access Study baseline questionnaire. Some differences exist as a result of question content, interview language, and response format, requiring assessment in future studies and consideration in designing Audio Computer-assisted Self-interviewing systems and questionnaires.
authors.affiliation: Centers for Disease Control and Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia 30333, USA.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Krawczyk
authors.forename: Lytt I
authors.initials: LI
authors.lastname: Gardner
authors.forename: Jichuan
authors.initials: J
authors.lastname: Wang
authors.forename: Ramses
authors.initials: R
authors.lastname: Sadek
authors.forename: Anita M
authors.initials: AM
authors.lastname: Loughlin
authors.forename: Pamela
authors.initials: P
authors.lastname: Anderson-Mahoney
authors.forename: Lisa
authors.initials: L
authors.lastname: Metsch
authors.forename: Sonya
authors.initials: S
authors.lastname: Green
mesh_terms: D000328:Adult; D003201:Computers; D005260:Female; D015658:HIV Infections; D015438:Health Behavior; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012944:Social Support; D011795:Surveys and Questionnaires