Definition:Regression/Effect Variable

Definition

Let $X$ and $Y$ be random variables.

Let $\map f {Y, x}$ denote the regression of $Y$ on $X$.

The random variable $Y$ is known as the effect variable.

Also known as

The effect variable of a regression is also known as the regressand.

Other terms used for this concept are:

the response variable

the dependent variable.

However, both of these names are used in a wider context than regressions, and so are not endorsed on $\mathsf{Pr} \infty \mathsf{fWiki}$.

Also see

• Results about effect variables can be found here.

Sources

• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): effect variable
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): regression