This is an interesting data point, however one key factor in repeating positive affirmations is the repetition. I'm not sure you can discredit the idea with a

This is an interesting data point, however one key factor in repeating positive affirmations is the repetition. I'm not sure you can discredit the idea with a one-time test like this. It's kind of like getting a bunch of people to do push-ups once, and trying to draw some conclusion about strength training.