4 ms·

The proper control group would be people with COVID who didn't go through the lockdowns.

• happytoexplain 6y ago
  They both seem like useful control groups - can you explain the difference to an amateur on statistics?
  • rriepe 6y ago
    Covid and the lockdowns both might be causing the effect. So you have one group that has just Covid and then one group that has both. Then you compare the outcomes and see if the just-Covid group has the effect too. But my comment was kinda tongue-in-cheek: How do you even find people not affected by this doom-n-gloom global news story?
• tablespoon 6y ago
  > The proper control group would be people with COVID who didn't go through the lockdowns. No, they were studying the effects of COVID, not the effects of lockdowns. Your suggestion is controlling for the wrong variable.
• kkoncevicius 6y ago
  Best control group would be people who went through the lockdowns, had flu but suspected themselves to have COVID.
  • rriepe 6y ago
    I like this one too.