Attention performance people!
Attention people who use numbers for performance!
You have one job!
One job only!
The purpose of your job, listen up, here it is, I’m about to tell you….it is to find out…
“Is the apparent effect real, or is it due to chance?”
Your job is to (i) measure the right thing (ii) in the right way, so that managers can tell if what they are doing has any real effect, and that any change isn’t due to chance.
Everything flows from that question. Here, I’ll repeat it..