Short Answer

The Core Criterion for Dev and Test Set Selection

Question: When selecting examples for dev and test sets, what is the core criterion you should follow if you expect your future data to differ from your training data?

Sample answer: Dev and test sets should be chosen to reflect the data you expect to get in the future and want to do well on, rather than the distribution of the training data.

Key points:

  • Dev and test sets must reflect future data.
  • Selection must align with the target distribution the system wants to perform well on.

Rubric: The answer must state that the sets must reflect future data that the system expects to receive and wants to perform well on.

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Updated 2026-05-26

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