Which of the following is considered a best practice when creating a campaign experiment?

Question

Accepted Answer

Focus tests on one variable at a time and use separate tests to examine the effects of more than one change.

Answer

After an experiment ends, evaluate performance over a timeline that includes the ramp-up period.

Answer

When experimenting with creatives, new ads are not subject to ad approvals, so experiments can be expedited.

Answer

Pick two or three metrics to evaluate campaign performance and determine the winner of a test.