This MedLibrary.org supplementary page on Proxy (statistics) is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:
Related Sponsors
In statistics, a proxy variable is something that is probably not in itself of any great interest, but from which a variable of interest can be obtained. In order for this to be the case, the proxy variable must have a close correlation, not necessarily linear or positive, with the inferred value.
Examples
Per-capita GDP is often used as a proxy for measures of standard of living or quality of life.
When performing social collections, the gender of the respondent is an important variable. As gender commonly dictates how one responds. Most general collections, therefore, collect data on the respondent's sex and age, and that is used as a proxy for gender. In most general collections, the proportion of transsexual and transgendered individuals is low, making the correlation reasonably good.
Likewise, country of origin or birthplace might be used as a proxy for race.
See also
References
- Toutenburg, Helge; Götz Trenkler (1992). "Proxy variables and mean square error dominance in linear regression". Journal of Quantitative Economics 8: 433-442.
- Stahlecker, Peter; Götz Trenkler (1993). "Some further results on the use of proxy variables in prediction". The Review of Economics and Statistics 75: 707-711. The MIT Press.
- Trenkler, Götz; Peter Stahlecker (1996). "Dropping variables versus use of proxy variables in linear regression". Journal of Statistical Planning and Inference 50 (1): 65–75. NORTH-HOLLAND. doi:.
 |
This statistics-related article is a stub. You can help Wikipedia by expanding it. |
Wikipedia content modification information:
- This page was last modified on 11 October 2008, at 06:20.
Wikipedia Authorship and Review
Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.
Wikipedia Usage Guidelines
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "Proxy (statistics)".
The URL for this specific entry is:
All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.