@Mari-LouA I disagree with the assertion that it's bogus. It's a
micro-study, not a complete observational study, so one afternoon is OK for it. The number of people in the test group is clearly mentioned. Also, (at the very least for the specific quote I cited here), it doesn't matter if one's English level is high or medium. Finally, it also goes without saying that the study's results aren't to be concluded as fact, but only used to make potential indications. What I'm proposing here is for one of those potential indications to be implemented, to see if it actually makes a difference. —
Sonic the Anonymous Hedgehog 8 mins ago