Instrument details

Instrument Title

VAS: Visual Analogue Scale (30-day) - Chaiyachati

View PDF - VAS_Chaiyachati.pdf

Source Article

Chaiyachati, K., Hirschhorn, L. R., Tanser, F., Newell, M. L., & Bärnighausen, T. (2011). Validating five questions of antiretroviral nonadherence in a public sector treatment program in rural South Africa. AIDS patient care and STDs, 25(3), 163-170.

Response Options

Place a cross on the line showing how many ART pills taken in the last month - ranged from 0% to 100%

Survey Items

Please put a cross on the line below at the point showing your best guess about how many antiretroviral pills you have taken in the last month.

Internal Reliability

Reliability information was not available.

Validity

Criterion-related validity assessed via comparison with viral load.

Google Scholar

View article on Google Scholar

Terms Of Use

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:

Chaiyachati, K., Hirschhorn, L. R., Tanser, F., Newell, M. L., & Bärnighausen, T. (2011). Validating five questions of antiretroviral nonadherence in a public sector treatment program in rural South Africa. AIDS patient care and STDs, 25(3), 163-170.

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.