Butch Harmon said recently: “Tiger was the greatest pressure putter I’d ever seen since Jack Nicklaus. There was no doubt about that. He made every one he had to make every single time, and he just doesn’t do that anymore. I don’t put that down so much to mechanics as I do nerves.” Is it nerves or is it mechanics? Or is it a bit of both. The fundamental attribution error is the tendency to over-value personality-based (about the person) explanations for an observed behaviour (e.g., poor putting) of another person but under-values situational explanations for that behaviour (e.g., a mechanical flaw). In other words, we might think someone’s poor putting is more to do with their mental state than their mechanics. Before we make such an assessment, we need to be careful about the advice we give because we might be setting them off on the wrong path. Putting statistics might offer an objective picture.