How Do You Test It With Digital Advertising or Email?

The easiest are digital advertising an email. If you have a sizable email list, it's really easy to mock up four different versions of email and sort of on eof em, change the copy and the other one change to look and feel. You certainly have to be a little bit careful with what metrics you're looking at. And if you want to use data as your argument, you legitimately need to come up with a sample size that will actually give you a statistically significant result.