Regarding novelty, the distinction is between novel and well-learned tasks. Several studies have used tasks for which participants have no prior experience (e.g., water-polo tasks in students who have never played water-polo; Hatzigeorgiadis et al., 2004), whereas others have used tasks that are well mastered by participants (e.g., tennis forehand in tennis players; Landin &Hebert, 1999). Considering that, in novel tasks, there is more scope for improvement and that performance enhancement can be achieved faster compared to well-learned tasks, we hypothesized that self-talk interventions will have a greater impact on novel rather than well-learned tasks.