Terminology of Correlation & Regression

Terminology of Correlation & Regression

Definitions

Coefficient of Determination
The percent of the variation that can be explained by the regression equation
Correlation
A method used to determine if a relationship between variables exists
Correlation Coefficient
A statistic or parameter which measures the strength and direction of a relationship between two variables
Dependent Variable
A variable in correlation or regression that can not be controlled, that is, it depends on the independent variable.
Independent Variable
A variable in correlation or regression which can be controlled, that is, it is independent of the other variable.
Pearson Product Moment Correlation Coefficient
A measure of the strength and direction of the linear relationship between two variables
Regression
A method used to describe the relationship between two variables.
Regression Line
The best fit line.
Scatter Plot
An plot of the data values on a coordinate system. The independent variable is graphed along the x-axis and the dependent variable along the y-axis
Standard Error of the Estimate
The standard deviation of the observed values about the predicted values

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