How and What to Test Effectively

Basic Rules

When setting up your test, follow these basic rules:

- Only test one variable at a time.

- Always test against a control group.

- Test panels must be selected from the same list universe.

- Mail dates must be the same for all test panels.

Only test one thing at a time. You must be able to read the results accurately. Every variable you introduce can influence the outcome. If you’re testing two different offers against each other and against a control group, ensure that all variables and conditions are the same for each test group.