Testing about the impact of the summary or about its existence
Let me see if I understand well. In newsletter A, we let people know about Assembl and its synthesis. And in newsletter B, we do not talk about it at all. We let then Mailchimp compare the click rates.
It’s very easy to do this, and its a great idea. However, I am not sure if we are really testing the impact of the summary on the involvement of people. We are testing more their likelihood to click before they know what’s in the summary, than effectively testing the impact of the summary on their actions after having read it.
We should let group A know about it, group B not know about it. And then test their involvement, participation on something else. This is harder to organize, and here is where it’s important to organize the groups homogeneously, so that one group is not already more likely to contribute because they are usually more involved. This is why I was talking about carefully making the split. What do you think about this @Alberto?