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| One Mask, Three Perceptions (Photos by Wmpearl) |
On the first day of his statistics course, a professor announced, “Statistics don’t lie, but liars use statistics.”
All too true, especially when bias enters the equation. This seems to be the case with a conclusion that was recently arrived at. After sampling just 25 elders, researchers allegedly determined that wearing a mask does not lower oxygen-saturation levels “in older patients.”
Would that be in all older patients, or in just 25? And how were these participants chosen? At random, or from a group of select seniors? How long were they monitored for? An hour? An afternoon? A day? So many details to (hopefully) carefully consider…
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Copyright November 5, 2020 by Linda Van Slyke All Rights Reserved
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