Based on the below tables, which model should be chosen among the three? Please
ID: 3303067 • Letter: B
Question
Based on the below tables, which model should be chosen among the three? Please explain your answers in terms of AIC, McFadden R2 , Area under the ROC curve, and Model Complexity (i.e., Number of Predictor Variables).
Training
Model 1
Model 2
Model 3
AIC
9242
2749
9235.8
McFadden R-squared
0.334
0.40
0.334
Validation
Model 1
Model 2
Model 3
Area under the ROC curve
0.9010
0.9019
0.9012
Number of predictor variables
20
19
15
Training
Model 1
Model 2
Model 3
AIC
9242
2749
9235.8
McFadden R-squared
0.334
0.40
0.334
Explanation / Answer
Since the ROC curve area is very similar in the three models, that criteria should not be used for comparison.
The less the AIC the better the model and the more the R - squared the better the model is.
Therefore, since the model 2 has lowest AIC and highest R-Squared, it is the best model.
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