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2 points by debrouwere 3163 days ago | link | parent

For correlation to not imply causation, there have to be confounding factors. It's usually fairly easy to come up with a couple for almost every observational study, but for the life of me I cannot think of a confounder that might be present in this study. The author suggests that, who knows, perhaps stories submitted on weekends are simply better than those submitted during the week, but you have to admit even that is a fairly implausible candidate.



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