study guides for every class

that actually explain what's on your next test

Explanatory variable

from class:

Intro to Statistics

Definition

An explanatory variable is a type of independent variable used in experiments to explain variations in the response variable. It is manipulated by researchers to observe its effect on the dependent variable.

congrats on reading the definition of explanatory variable. now let's actually learn it.

ok, let's learn stuff

5 Must Know Facts For Your Next Test

  1. It is also known as a predictor or independent variable.
  2. Explanatory variables are used to determine cause-and-effect relationships.
  3. They are crucial for experimental design and hypothesis testing.
  4. In regression analysis, explanatory variables are used to model the relationship with the response variable.
  5. Multiple explanatory variables can be included in a single study to observe their combined effects.

Review Questions

  • What is the role of an explanatory variable in an experiment?
  • How does an explanatory variable differ from a response variable?
  • Why is it important to control for multiple explanatory variables in a study?
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Glossary
Guides