Re:Fugitive on run for seventeen years found living in cave ...
by joshuamorton on Tuesday October 01, 2019 @04:10PM
(#21130010)
You probably can't, which is my point.
Generally the best ways to analyze the impact of similar social changes is to compare two similar locations, one that makes a change and one that doesn't, over the same time period, and hope that controls for broader social change.
It's not perfect by any means though.
Edit: legitimately curious, not trying to be nitpicky