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For example,

If preezie is embedded on a single page then this is straight forward:

Split traffic

Page trigger

Segment

Conversion rate

Sessions per user

Bounce rate

50% Test

myhomepage.com

40% non-preezie users

3.2%

2.4

26%

10% preezie users

4.5%

3.2

0% (preezie counts as a significant event)

50% Control

myhomepage.com

50% non-preezie users

3.1%

2.6

25%

This means the buckets aren’t an even 50/50 split but more like a 50/10 split, we’re using traffic split to understand the control vs 40% bucket of non-preezie users.

Once you can see these buckets are performing equally then you can start to compare the preezie 10% against the 50% who never saw it and the 40% who did see it but didn’t engage. This will tell you the user level impact of preezie across sessions, e.g. sessions per user increases.

Info

We do this because preezie won’t be a tool required by 100% of users, we want to help users who need it and not impact those who don’t.