email optimisation

Are your email A/B split test results valid?

How do you decide on the test cell sample size for email splits tests? I’ve often seen discussion about it being important to get right, but seldom seen information on how to do that. If you’ve been waiting for an answer on how to pick test cell size then this post is for you. By the end of this post you will know how to decide on your test cell size [continue reading…]