A system performs well on the dev set but poorly on the test set (same distribution). What is the diagnosis?

True or False: If dev and test sets share a distribution, dev-test performance gaps always mean the model is too complex.

The obvious cure for overfitting the dev set is to get more _____ data.

Match each dev/test performance scenario to its correct diagnosis

Order the reasoning steps for diagnosing a same-distribution dev/test performance gap

Explain why a same-distribution dev/test gap points specifically to dev set overfitting

Diagnose a team's dev/test performance gap in a shared-distribution setting

Why must dev and test sets share the same distribution to clearly diagnose dev set overfitting?

What is the recommended cure when a system has overfit the dev set?

True or False: A dev/test performance gap always requires collecting more test set data as the fix.