If you want to understand your KPIs, you need to test — and test some more. But first, explains columnist Benny Blum, you need to know the difference between causation and correlation. Benny Blum on July 31, 2015 You’re a marketer … at least I’m assuming you are because you’re reading this. You take your … Continue reading Are Your Observed KPIs Based On Causation Or Correlation?