Compara mètodes

	R quadrat millorat (R²_adj)	Criteri d'Informació d'Akaike (AIC)
Camp	Avaluació de models	Avaluació de models
Família	MCDM	MCDM
Any d'origen	1961	1974
Autor original	Henri Theil	Hirotugu Akaike
Tipus	Penalized goodness-of-fit metric	Model selection metric
Font seminal	Theil, H. (1961). Economic Forecasts and Policy. Amsterdam: North-Holland Publishing Company.	Akaike, H. (1974). A new look at the statistical model identification. IEEE Transactions on Automatic Control, 19(6), 716-723.
Àlies	Adjusted R², R²_adj	AIC
Relacionats	5	4
Resum	Adjusted R² is a corrected version of the coefficient of determination that accounts for the number of predictors in a regression model. Introduced by Henri Theil in 1961, it addresses the fundamental limitation of standard R²: the tendency to increase whenever any predictor is added, regardless of whether that predictor contributes meaningfully to explaining the target variable.	The Akaike Information Criterion is an information-theoretic measure for model selection that balances goodness of fit against model complexity. Introduced by Hirotugu Akaike in 1974, AIC estimates the relative quality of models for a given dataset, penalizing additional parameters to prevent overfitting.