Start with a decision

A useful experiment begins with something you need to decide. “Should we lead with simpler licensing or a better atmosphere?” is more useful than “Let’s try some ads.” Write the decision down before you choose the channel. This gives the test a purpose and makes the result easier to use.

Change one important thing

Keep the audience, offer and destination as consistent as possible. Compare two messages that express genuinely different propositions. If you change everything at once, a better result tells you very little about what caused it. A modest test with a clear comparison can teach more than a larger campaign without one.

Define the evidence before you start

Choose the outcome that matters: a qualified enquiry, an activated trial or a purchase. Write down a spending limit and a review date. If traffic is low, allow enough time to observe relevant behaviour. Do not mistake one conversion for a repeatable result, and keep a record of anything that could have influenced the outcome.

Finish with a useful note

Record the question, what you tried, what happened and what remains uncertain. A result can be encouraging, inconclusive or unhelpful; all three can guide the next decision. The point is to leave the next person with something better than a screenshot of an ad report.

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