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by null_shift 1736 days ago
“(1) the pandemic affected both groups in the same way, so that taking the difference between the two groups cancels out the pandemic effect“

i think this is a significantly flawed assumption. in my experience, the people that had been working from home previously are much better equipped to deal with the pandemic (e.g. likely have a home office set up vs. working from makeshift workspace like a kitchen table).