Well, in my experience, the average behavioral researcher isn't so much "confident they have captured all the relevant variables"... as "confident they have a r

Well, in my experience, the average behavioral researcher isn't so much "confident they have captured all the relevant variables"... as "confident they have a research paradigm that will yield publishable data." —from a recovering academic As for "Don't we all know the feeling of not wanting to stop?"... maybe us on HN. But your comment raises a significant issue: those who do readily get into that "not wanting to stop" place are likely to end up working late because of that engagement (and hence focus).