Leakage, Nested Validation & Calibration – Practice Quiz

Build prediction assessments that match deployment information. Prerequisites: cross-validation, regression losses and elementary probability. Audit preprocessing and feature selection, separate nested tuning from testing, choose patient/site/time splits, compare MAE and RMSE, and distinguish probability calibration from ranking. Includes single-select and multiselect questions, worked solutions and content-based distractor feedback.

References: scikit-learn: Leakage, scikit-learn: Nested Validation, scikit-learn: Cross-validation, scikit-learn: Probability Calibration.

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