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covariate

covariate

1 8.6
A variable like age or gender included to control its effect in a study
  • noun
  • /ˈkoʊvəˌreɪt/
  • Specialized
translation icon : covariable
  • We collected demographic and tobacco-related variables at baseline and included these as covariates in the analysis.
  • demographic covariates
  • adjusted for covariates
  • include covariates

Most of those treat all those covariates in a linear fashion.

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Examples

  • In addition, when expressive language was used as a covariate, group differences on all three dependent variables were no longer significant.

    Academic text (2011)
  • A much larger sample size would be needed to control for this many covariates.

    Academic text (2011)
  • Most of those treat all those covariates in a linear fashion.

  • Table 1 presents each of these covariates and describes the source of the data.

    Academic text (2011)
  • Multiple imputation was used to fill in missing covariate values and to account for the uncertainty caused by missing data.

    Academic text (2011)
  • Adjustment for secondary covariates caused very little change to the estimated effects for the treatment variables.

    Academic text (2011)
  • Finally, we included more comprehensive sets of individual and state-level covariates in addition to state and regional fixed effects and time trends.

    Academic text (2011)
  • The analyses reported above were repeated, including oral expressive language as a covariate.

    Academic text (2011)
  • Intriguing associations were found between demographic covariates and peer outcomes.

    Academic text (2011)
  • The researchers included age and income as covariates in their study to ensure accurate results.

Synonyms

covariable
vscovariate
  • Specialized
9.1

A measured factor that can affect study results and researchers often control it

is specifically included to control for its effect rather than being the main focus

Surface Forms

covariate singular
covariates plural

Morphology

covariate = variate (semi-transparent) = co + variate

The parts 'co-' (together/jointly) and 'variate' (a variable) make the idea understandable, but 'variate' is a technical/rare base and the statistical usage is specialised.

Etymology

The word covariate is made of co- meaning 'together' and variate from 'vary' meaning 'to change', like in cooperate and variable. So a covariate is a variable that 'changes together' with others and is used in a study to help control their effect on the results.