Question: 13. How can we decide if it is 'worth it' to include an extra term in our regression model? . See if the new term

13. How can we decide if it is 'worth it' to include an extra term in our regression model? . See if the new term is a significant predictor b. Look for an interaction effect between the new term and the terms already included in the model c. Use the ANOVA test to compare the model with the term to the model without the term d. See if the new term, alone, is a significant predictor for the DV e. See if the new term is significantly correlated with the DV

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