covariation
Definition
- Noun:
- (Statistics) Correlated variation: The simultaneous variation of two or more variables in a related manner. It describes how changes in one variable are associated with changes in another variable, indicating a statistical relationship.
Usage
- Noun:
- Covariation is a fundamental concept in statistical analysis, used to measure how two variables change together.
- Researchers study the covariation between economic indicators to understand market trends.
- A strong positive covariation suggests that as one variable increases, the other tends to increase as well.
Examples
- Noun:
- The analysis revealed a significant covariation between study hours and exam scores.
- Understanding the covariation of temperature and pressure is crucial in meteorology.
- The covariation in their responses suggested a shared underlying factor.
Advanced Usage
- "Pattern of covariation": Refers to the specific way in which variables change together (e.g., linear, nonlinear).
- The scatterplot helped visualize the pattern of covariation between the two datasets.
- "Covariation matrix": A table showing the covariance (a specific measure of covariation) between multiple variables.
- The covariation matrix was essential for the multivariate analysis.
Variants and Related Words
- Covary (verb): To vary together in a correlated way.
- These two factors are known to covary under stress conditions.
- Covariance (noun): A specific statistical measure quantifying the degree to which two variables change together.
- Covariance is calculated as the expected value of the product of their deviations from their respective means.
Synonyms
- Correlated variation
- Concomitant variation
- Associated change
Related Phrases
- "Measure of covariation": A statistical metric, like covariance or correlation, that quantifies the relationship.
- Correlation coefficient is a standardized measure of covariation.
- "Account for covariation": To statistically control for or explain the shared variance between variables.
- The model must account for the covariation between age and experience.
Noun
-
(statistics) correlated variation
