Do You Have a Negative Effect on Performance?

The novice effect applies here. Whether you do fives or tens, it doesn't matter if you've been doing nothing, you're going to show an improvement. It is impossible to avow at the efficacy of five versus ten in a study of this type because there are too many other variables generating noise that you cannot possibly tease out. But guess what happens? The paper accepted for publication, and now you're in the literature, and anybody like that as evidence based. I used to carry this around with me, and i got tired of dealing with it.