You act like people never did a valid causal analysis of the data in the Nurses' health study.

I know I overstated things. There are such things as natural experiments, having some causal information already, etc.

I'm not familiar with the Nurses' health study, and a quick google only turns up its conclusions. What methods did they use?

Open thread, January 25- February 1

by NancyLebovitz 1 min read25th Jan 2014318 comments


If it's worth saying, but not worth its own post (even in Discussion), then it goes here.