covariate

co·va·ri·ate (ko-varґe-ət) a variable that is related to a second variable.

Medical dictionary. 2011.

Look at other dictionaries:

  • Covariate — In statistics, a covariate is a variable that is possibly predictive of the outcome under study. A covariate may be of direct interest or it may be a confounding or interacting variable. The alternative terms explanatory variable, independent… …   Wikipedia

  • covariate — noun Date: 1965 any of two or more random variables exhibiting correlated variation …   New Collegiate Dictionary

  • covariate — noun A variable that is possibly predictive of the outcome under study. See Also: covary, covariance …   Wiktionary

  • covariate — co·variate …   English syllables

  • covariate — Stats a variable that is not crucial in an investigation but may affect the crucial variables from which a model is being built …   The ultimate business dictionary

  • covariate — ¦kōˌ noun Etymology: co + variate (II) : any of two or more random variables exhibiting correlated variation …   Useful english dictionary

  • Time-varying covariate — A time varying covariate is a term used in statistics, particularly in survival analyses. It reflects the phenomenon that a covariate is not necessarily fixed. For instance, if one wishes to examine the link between area of residence and cancer,… …   Wikipedia

  • Linear regression — Example of simple linear regression, which has one independent variable In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one… …   Wikipedia

  • Analysis of covariance — (ANCOVA) is a general linear model with one continuous outcome variable and one or more factors. ANCOVA is a merger of ANOVA and regression for continuous variables. ANCOVA tests whether certain factors have an effect on the outcome variable… …   Wikipedia

  • Proportional hazards models — are a class of survival models in statistics. Survival models relate the time that passes before some event occurs to one or more covariates that may be associated with that quantity. In a proportional hazards model, the unique effect of a unit… …   Wikipedia

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