The whiplash of the "infodemic" blasting through the media has been an unsettling initiation into the messiness of the scientific method. The fire hose of COVID-19 related data, studies, anecdotes and information has been impossible to fully digest even for those who are professionally trained scientists.
I offer two suggestions to help separate the wheat from the chaff.
First, look for scientific conclusions that have been peer-reviewed — whether by way of major scientific journal publications (e.g., Nature, Science, The Lancet, The New England Journal of Medicine, The BMJ, etc.) or by way of the amazing scientists conducting this process in real time on Twitter (e.g., Carl T. Bergstrom, Natalie E. Dean and many others). Be cautious of "preprint" studies, which are only just posted online without peer-review. The peer-review process is the cornerstone of objectively evaluating the methods, results and conclusions of a given study. Notably, many of the flashing findings ricocheting through the news and social media have not yet been peer-reviewed.
Second, look for studies that are appropriately designed, including the gold-standard "randomized controlled trial" (RCT). These studies include "control" treatments, which serve as the baseline to determine whether or not the use of a given experimental treatment (i.e., drug or other factor) has a meaningful effect. In these studies, treatment assignment is done randomly to prevent bias. The RCT experimental design is difficult to properly implement but produces very high-quality results. Notably, many early COVID-19 studies are not properly designed RCTs and have limitations.
We desperately need high-quality evidence to win our fight against COVID-19. This is not the time to neglect the fundamentals of the scientific method.
Brian Bohman, Minneapolis
The writer is pursuing a Ph.D. in water resource science at the University of Minnesota.
VIRUS RESPONSE
Weeks in, and I'm left wondering ...
On March 12, a letter writer wrote, "I was told by a biology professor in college years ago that there are two types of people out there. The first is those who say, 'If there is a problem, let's do something about it before there is a body count.' The second is those who say, 'If there is a problem, show me a body count and we will do something about it.' " Those words have haunted me since, and I was proud of our nation for doing something proactive about the virus. But now, seven weeks and 61,000 deaths later, and with the pushback from many eager to get back to normal, I wonder if there is a third type: If there is a problem, show me the body of someone I love, and then I'll believe that what we're doing is the right thing to do.
Melody Heide, Minneapolis
PANDEMIC ECONOMY
Fix housing before more bills due
Challenges facing renters and landlords outlined in a recent article ("As rent comes due, landlords reach out to struggling tenants," May 1) tell just a sliver of the story.