Visual analog scale
The visual analog scale ( VAS ) is a scale for measuring primarily subjective attitudes.
It is often used in pain research and pain therapy . Mostly it is a line, the endpoints of which represent extreme conditions, such as B. "no pain" and "unbearable pain". The respondent marks his / her subjective sensation with a vertical line on the line. The given value is then quantified by the respondent as a percentage or using a defined scale, usually from 0 to 10. However, the respondent does not see the discrete scales.
history
A visual analog scale (as a graphic rating scale ) was first published in 1921 by Hayes & Patterson as a new method for assessing workers by their superiors; two years later Freyd provided a more detailed list of the advantages and disadvantages of visual analog scales.
See also
literature
- Frederik Funke: Internet-based measurement with visual analogue scales: An experimental investigation (Internet-based measurements with visual analogue scales: An experimental investigation) . (PDF; 8.43 MB) Dissertation in psychology at the Faculty of Mathematics and Natural Sciences at the Eberhard Karls University of Tübingen , 2010, August 13, 2011.
Individual evidence
- ↑ Frederik Funke: Comparison of visual analog scales and categorical scales in offline and online design . (PDF; 1.47 MB) Master's thesis in the Sociology course at the Institute for Sociology of the Faculty of Social and Cultural Studies at the Justus Liebig University in Giessen, 2004