visual analog scale

noun

Medical Definition of visual analog scale

: a testing technique for measuring subjective or behavioral phenomena (as pain or dietary consumption) in which a subject selects from a gradient of alternatives (as from "no pain" to "worst imaginable pain" or from "every day" to "never") arranged in linear fashion abbreviation VAS

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“Visual analog scale.” The Merriam-Webster.com Medical Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/medical/visual%20analog%20scale. Accessed 12 December 2019.

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