Question: In a concise analytical response, explain the recommended treatment of a dev set that is not big enough to split and identify its permitted uses.

Sample answer: When the dev set is not big enough to split, the recommendation is to keep it intact and use the entire set as the Eyeball dev set. It can then support manual error analysis, model selection, and hyperparameter tuning.

Key points:

• The dev set is not big enough to split.
• The entire dev set becomes the Eyeball dev set.
• It is used for manual error analysis.
• It is used for model selection.
• It is used for hyperparameter tuning.

Rubric: A strong response states the small-set condition, recommends using the entire dev set as the Eyeball dev set, and identifies all three named uses. Partial credit should be given for a correct recommendation with one or two uses.