Free Adjusted R-square Calculator (Population R-square)

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Adjusted R-square Calculator (Population R-square)

This calculator will compute an adjusted R² value (i.e., the population squared multiple correlation), given an observed (sample) R², the number of predictors in the model, and the total sample size.

Please supply the necessary parameter values, and then click 'Calculate'.

Number of predictors:	The total number of predictors in the model, not including the regression constant.
Observed R²:	The model R-square. Also known as the squared multiple correlation or the coefficient of determination.
Sample size:	The total number of valid cases used in the analysis.

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