What must occur before strong dev/test performance can reasonably be expected?

Dev/test performance is usually worse than training-set performance.

An algorithm must perform well on the _____ set before strong dev/test performance can be expected.

Match each performance concept to its source-based meaning.

Order the reasoning used to evaluate a training-versus-dev/test performance claim.

Explain why training-set performance sets a prerequisite for dev/test performance.

Diagnose a report claiming 85% training accuracy and 95% dev/test accuracy.

Why should training results be checked before expecting strong dev/test results?

Which reported result conflicts with the source's training-first principle?

An algorithm performing poorly on training data can still be expected to perform well on dev/test data.