Test-retest reliability of a complex human immunodeficiency virus research questionnaire administered by an Audio Computer-assisted Self-interviewing system.
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.
Krawczyk
Christopher S
CS
Centers for Disease Control and Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia 30333, USA.
Gardner
Lytt I
LI
Wang
Jichuan
J
Sadek
Ramses
R
Loughlin
Anita M
AM
Anderson-Mahoney
Pamela
P
Metsch
Lisa
L
Green
Sonya
S
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