"We think we contributed, but we're not certain."
That's not a weak evaluation. That's an honest one.
The rigorous version of claiming impact has three checks: would it have happened anyway? Who did you measure? What else changed at the same time?
"We think we contributed, but we're not certain."
That's not a weak evaluation. That's an honest one.
The rigorous version of claiming impact has three checks: would it have happened anyway? Who did you measure? What else changed at the same time?