Significance of Adjusted coefficient of determination

Adjusted coefficient of determination measures how well a statistical model fits the data. It is a modified version of the coefficient of determination (R-squared) that adjusts for the number of predictors in the model. The adjusted R-squared increases only if the new term improves the model more than would be expected by chance. It can decrease if a predictor does not improve the model fit enough.

Synonyms: R-squared, Coefficient of determination, Goodness of fit, Explained variance, Adjusted r2

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The concept of Adjusted coefficient of determination in scientific sources