SAGE Research Methods - Encyclopedia of Epidemiology

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Dummy Variable

By: Renjin Tu
In: Encyclopedia of Epidemiology
Edited by: Sarah Boslaugh

A dummy, or indicator, variable is any variable in a regression equation that takes on a finite number of values so that different categories of a nominal variable can be identified.

The term dummy simply relates to the fact that the values taken on by ...

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  Tu, R. (2008). Dummy variable. In S. Boslaugh (Ed.), Encyclopedia of epidemiology (pp. 290-292). SAGE Publications, Inc., https://dx.doi.org/10.4135/9781412953948.n123
  
  Tu, Renjin. "Dummy Variable." In Encyclopedia of Epidemiology, edited by Boslaugh, Sarah, 290-92. Thousand Oaks, CA: SAGE Publications, Inc., 2008. https://dx.doi.org/10.4135/9781412953948.n123.
  
  Tu, R. 2008. Dummy Variable. In: Sarah Boslaugh Editor, 2008. Encyclopedia of Epidemiology, Thousand Oaks, CA: SAGE Publications, Inc. pp. 290-292 Available at: <https://dx.doi.org/10.4135/9781412953948.n123> [Accessed 11 Aug 2022].
  
  Tu, Renjin. "Dummy Variable." Encyclopedia of Epidemiology. Edited by Sarah Boslaugh. Thousand Oaks: SAGE Publications, Inc., 2008, pp. 290-92. SAGE Research Methods. 11 Aug 2022, doi: https://dx.doi.org/10.4135/9781412953948.n123.
  
  Tu, Renjin (2008). Dummy variable In: Boslaugh, Sarah (Ed.),Dummy variable Encyclopedia of epidemiology Thousand Oaks, CA: SAGE Publications, Inc.; 2008:290-292. doi:10.4135/9781412953948.n123
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