VAS: Visual Analog Scale - Berg
Berg, K. M., Wilson, I. B., Li, X., & Arnsten, J. H. (2012). Comparison of antiretroviral adherence questions. AIDS and Behavior, 16(2), 461-468.
Placed an X on a line showing how much of their HIV medications they have taken in the past 4 weeks (0% on one end, 100% on the other)
Place an ‘‘X’’ on the line at the point showing how much of your HIV antiretroviral medications you have taken in the past 4 weeks.
Reliability information was not available.
Convergent validity was assessed via comparison to frequency measure, percent measure, rating measure, and CPCRA. Criterion-related validity was assessed via comparison to viral load.
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Individuals may use this information for research or educational purposes only and may not use this information for commercial purposes. When using this instrument, please cite:
Berg, K. M., Wilson, I. B., Li, X., & Arnsten, J. H. (2012). Comparison of antiretroviral adherence questions. AIDS and Behavior, 16(2), 461-468.
When presenting results using any survey information you obtained from the SABI, please acknowledge the University of North Carolina at Chapel Hill Center for AIDS Research (CFAR), an NIH funded program P30 AI50410.