Your question is Predictive Model Validation. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain a statistical model you developed to predict an outcome. How did you validate it?
Discuss a real model from your experience, including the outcome, predictors, modeling assumptions, validation design, performance metrics, and how validation results affected your conclusions. Address potential leakage, overfitting, sampling bias, calibration, and whether the model was appropriate for the decision it supported.