correlation
oracknows | November 20, 2015One of the key principles of skepticism, particularly in medicine, is that correlation does not necessarily equal causation. I emphasize the word "necessarily" because sometimes skeptics go a bit too far and say that correlation does not equal causation. I myself used to phrase it that way for a long time. However, sometimes correlation does equal causation. However, much, if not most, of the time it does not. So how do we tell the difference between when correlation might well equal causation and when it does not? Science, of course, and critical thinking. Science is the main reason that we…
oracknows | May 11, 2014Besides yesterday being Mothers' Day yesterday, I had a lot of grant stuff to do, which means that this one will be a quickie. On Saturday, a reader sent me a link to one of the most useful sites I've ever encountered. I realize that over the weekend it's spread around the skeptical blogosphere like the proverbial wildfire, which is unfortunate (for me) given that I've made it a personal rule that I don't post on the weekend any more, barring amazing developments. Still, this one tempted me. It's a website called Spurious Correlations, and it is exactly what it claims to be. Its usefulness…
rallain | February 7, 2010Looks like the show Sport Science (on ESPN) might take the place of Fetch! With Ruff Ruffman as the target of my bad-science attacks. Note: it looks like ESPN has the short episode I will be attacking online, so check it out.
Let me start off with the big problem (which The Onion already talked about). Why do you want to make a show about science that has really terrible science (if you can even call it science)? I really don't get that. If you want to just talk about cool sports stuff, do that. Please don't call it science. Ok. Now on to the particular attack.
In the last episode,…
jwilbanks | April 1, 2009No, this is not an April Fool's post.
I found the argument about mexican lemons at Derek Lowe's In the Pipeline (if you've not got it on your RSS aggregator, get thee behind me) and thought it was a better way to celebrate the day of fools than by doing something fake like "I'm going to work at Elsevier as head of intellectual property!" or some such.
You see, we get fooled all the time by data. And frequently we really, really want the data to tell us something specific - something we've been looking for, for a very long time. Or we want to have the data tell us something coherent - to tell…