Dev and Test Splits Should Be Smaller for Very Large Datasets

A Test Set Large Enough for a Reliable Final Check

Test Set Size Should Enable Reliable Evaluation

Which use of a test set matches its intended role?

A final test set can measure performance without being used to choose model settings.

The held-out test set is used to _____ the final model’s performance on unseen data.

Match each holdout-set concept with its proper role.

Order the steps for deciding how a test set may be used.

What a test set is for, and what it is not for

Using the Right Evaluation Set for Model Selection

Test Set Purpose and Limits

Using the final holdout set appropriately

The test set should be used to choose the model you deploy.