Table 4

Summary of model robustness criteria used to ensure analytical validity and generalizability

Model robustness criterionDescriptionObjective
Train-test splitThe data set was divided into 70% training and 30% testing subsetsTo evaluate model generalizability and prevent overfitting
Stopping criteria
  • Minimum node size = 20;

  • Maximum tree depth = 5;

  • Gini index purity improvement threshold = 0.0001

To limit model complexity and avoid capturing noise
Source(s): Authors’ elaboration

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