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Updated: May 10, 2025
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Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
Published on: March 1, 2017
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Exploring the origin and conceptual framework of the EQ VAS.
Ling-Hsiang Chuang1,2, Paul Kind3,4, Thomas Kohlmann5
1Department of Epidemiology and Global Health, Umeå University, Umea, Sweden.
Summary
The EQ VAS was initially designed for valuing health states, not measuring overall health. Despite its origins, it is a valid measure, but its conceptual framework requires further research.
Area of Science:
- Health Economics
- Psychometrics
- Patient-Reported Outcomes
Background:
- The EuroQol Visual Analogue Scale (EQ VAS) is widely used.
- Its original design purpose and conceptual framework are not widely understood.
Purpose of the Study:
- To investigate the origin of the EQ VAS.
- To explore the current understanding of its conceptual framework.
Main Methods:
- Literature search using the snowball approach.
- Two-step review: citation search and grey literature search.
Main Results:
- EQ VAS was designed as a warm-up for valuing health states, not measuring self-reported health.
- Design elements reflect its valuation origin.
- Despite its origin, EQ VAS is a valid measure of self-reported health status.
- Limited literature exists on its conceptual framework for self-rated health.
Conclusions:
- Further research is needed on EQ VAS design and conceptual framework.
- The EQ VAS has potential as a powerful overall health measure.
- Empirical function of EQ VAS warrants further investigation.
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