CompTIA DataX (DY0-001) — Question 57

A model's results show increasing explanatory value as additional independent variables are added to the model. Which of the following is the most appropriate statistic?

Answer options

• A. Adjusted R2
• B. p value
• C. x2
• D. R2

Correct answer: A

Explanation

Adjusted R2 is the best choice as it adjusts for the number of predictors in the model, providing a more accurate measure of explanatory power when additional variables are included. R2 can increase with more variables, but it doesn't account for the number of predictors, potentially leading to overfitting. The p value assesses the significance of individual predictors, and x2 is not relevant in this context.