covariate

From co- +‎ variate.

• (Received Pronunciation) IPA^(key): /kəʊˈvɛɹ.i.eɪt/
• (General American) IPA^(key): /koʊˈvɛɹ.i.eɪt/
• (General Australian) IPA^(key): /kəʉˈveɹ.i.æɪt/

covariate (plural covariates)

1. (statistics) A variable that is possibly predictive of the outcome under study.
   • 2009 February 6, Christophe Fraser et al., “The Bacterial Species Challenge: Making Sense of Genetic and Ecological Diversity”, in Science‎^[1], volume 323, number 5915, →DOI, pages 741–746:

     On the basis of these analogies, any inference of a population structure driven by selective sweeps would require good longitudinal data from natural bacterial populations, as well as observations of episodic crashes in diversity causally associated with genetic changes and not associated with changes in ecological covariates.

   • 2011 January 31, Anil K. Bera, Aurobindo Ghosh, Zhijie Xiao, “FRACTILES ON QUANTILE REGRESSION WITH APPLICATIONS”, in Mathematics Subject Classification‎^[2], archived from the original on 12 September 2025, page 2:

     Mahalanobis used a visual method of approximating the standard error of the income at all the fractiles of the covariate for the same graph by taking two independently selected "interpenetrating subsamples" and obtaining a graph for each of the subsamples besides the combined sample.

• covary
• covariance
• covariated
• multicovariate

• acervatio