So far, the researchers have studied 21 competitors, randomised into two groups. One group received some simple instruction on how to use motivational self-talk “to counter thoughts about withdrawing effort, and in response to critical moments (e.g. getting lost),” with different statements chosen for use at different parts of the race (e.g. “Feeling good!” early in the race, versus “Push through this!” later in the race). The other group was taught to “use a concentration grid to develop their concentration.” This is a key point: both groups received a psychological intervention that they could reasonably believe would enhance their performance.The self-talk runners tested so far have finished an average of 25 minutes faster than the control group, which translates into an effect size of 0.30. In practice, that means there’s a 56 percent chance that the self-talk is boosting performance, a 27 percent chance it’s not doing anything, and a 17 percent chance it’s harming performance. Again, this is just a progress report: the researchers plan to continue collecting data in future editions of the race to get a bigger data set.
While the results are promising, the most important point to me is that they’re actually doing the study. As I’ve written in previous columns, I think sports psychology has a greatly underappreciated potential to improve performance. But the only way to find out which techniques (if any) actually work is to test them properly, and that’s what is finally happening.