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The visual analog rating scale of health-related quality of life: an examination of end-digit preferences
BACKGROUND: The Visual Analog Scale (VAS) has been extensively used in the valuation of health-related quality of life (HRQL). The objective of this paper is to examine the measurement error (rounding) explanation for the higher prevalence of VAS scores ending with a zero, and to provide an alternat...
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| Formato: | Texto |
| Lenguaje: | English |
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BioMed Central
2005
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1308843/ https://www.ncbi.nlm.nih.gov/pubmed/16285884 http://dx.doi.org/10.1186/1477-7525-3-71 |