x months into the pandemic people who are connected enough to hear about and volunteer for a vaccine test are going to be very cautious people - after all, to actually qualify you need to have never been infected. Of course few of the placebo group are going to be exposed.
-
-
This Tweet is unavailable.
-
-
-
-
Don't hate on it. A design with placebo is going to be always better than non-placebo. Same for blinding, randomization and other procedures to reduce bias. Even if you don't think it's strictly required.
-
This is exactly what it means to be cargo cult. Challenge - explain *why* having a placebo group improves the study.
- Show replies
New conversation -
-
-
Yeah I mean ideally you don't want to be measuring behavioral differences that come from giving ppl the vaccine, right
-
Ideally you want to expose everyone vaccinated and test the actual efficacy - not test whether or not the people who avoided the virus for months continued to do so. Barring that you want behavioral changes so as to actually test for immunity.
- Show replies
New conversation -
-
-
what about adverse effects?
-
What about them? Having a placebo group doesn't get rid of them.
- Show replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.