Re: Fwd: Correlational Example Involving COVID-19 Useful for Classes

Posted by Bruce Weaver on Oct 23, 2020; 7:50pm
URL: http://spssx-discussion.165.s1.nabble.com/Correlational-Example-Involving-COVID-19-Useful-for-Classes-tp5739871p5739880.html

Thanks Mike.  It's a nice example of an ecological correlation.  For some
reason, it reminded me of this other well-known example:

https://i.insider.com/5353e29b6da8115322dd4816?width=1000&format=jpeg&auto=webp

Unfortunately, some readers didn't understand that the NEJM article
describing the link between chocolate consumption and Nobel laureates was
meant to be a joke.  :-)  

https://www.wbur.org/commonhealth/2012/10/15/nobel-chocolate-joke

I'm not suggesting the correlation in the Washington Post article is a joke,
by the way.  But I am suggesting that we must always be mindful of the
ecological and atomistic fallacies when examining associations at different
levels.  

Cheers,
Bruce



Mike wrote

> Note:  r = -0.85; the R^2 is provided in the article and I used a
> calculator to
> get the square root and forgot to include the negative sign (as the
> percentage
> of mask users in a state increases, the fewer one knows people with
> COVID-19
> symptoms).  Sorry about that.
>
> -Mike Palij
> New York University

> mp26@

>





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