Odorant diffuser improves memory and neural functioning in older adults
This study mananaged to finance 38 participants worth of MRI time and (likely significant) monetary compensation for all 132 participants. Yet it wastes no more than a couple of sentences on how it threw out 109 participants&#x27; worth of data on cognitive tests, resulting in a drop out rate of 83% for the cognitive side of things, and still considers its findings in this area valid.<p>(section 2.5 - Impact of COVID-19 pandemic)<p>The discussion similarly does not waste the reader&#x27;s time on possible validity issues or confounders.<p>I can only speculate that more scientific rigour would have been applied had it been grant money being thrown around.