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Title Visual Analog Scales: Do they have a role in the measurement of preferences for health states?
Source Medical Decision Making, 21, pp. 329-34
Year 2001
Access date 18.05.2013
Abstract

Visual analog scales (VASs) have long been used as a method of measuring preferences for health outcomes. They are easy and inexpensive to implement, can be administered quickly, and lend themselves to self-completion. Over time, however, disturbing questions have emerged concerning the validity of the VAS approach. This article reviews briefly the history, theory, practice, problems, and advantages of VASs; presents some suggestions to improve the validity of VASs; and recommends a limited but useful role for VASs in the process of measuring preferences for health states.

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Year of publication2001
Bibliographic typeJournal article
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