# correlation and causation

## Hilarious Graphs (and Pirates) Prove That Correlation Is Not Causation

When it comes to storytelling, we have a problem. It’s not our fault though – as human beings we are hard-wired from birth to look for patterns and explain why they happen. This problem doesn’t go away when we grow up though, it becomes worse the more intelligent we think we are. We convince ourselves that now…

## The One Reason Your Correlation Results Are Probably Wrong

I’m sure you all know how to do a correlation analysis to test if one variable is related to another. You probably even know when to use a Spearman correlation test over a Pearson correlation test. But did you know that the answers from these tests are probably wrong?When you have a pair of variables, finding a statistical relationship…

## 5 ‘Correlation Is Not Causation’ Traps that Even Pros Fall Into (sometimes)

How many times have you heard that ‘correlation is not causation’? Many times, I’m sure. So you know not to say things like ‘wow, the correlation between A and B has a p-value of 0.000001 so A must be causing B…’. I wish I had a pound for every time a very experienced, intelligent scientist with PhDs…