“…To account for the learning advantages of self-controlled practice conditions, two (competing) explanations are generally adopted by researchers. On the one hand, some researchers have argued that having choice or control is intrinsically rewarding and satisfies the basic psychological needs of autonomy and/or competence, which in turn enhances motor learning (Chiviacowsky, 2014;Lewthwaite, Chiviacowsky, Drews, & Wulf, 2015;. On the other hand, the learning advantages have been suggested to be predominantly driven by the learner's ability to engage in performance-dependent strategies (e.g., error estimation) that serve to reduce the uncertainty regarding task performance (Carter, Carlsen, & Ste-Marie, 2014;Carter, Rathwell, & Ste-Marie, 2016;Chiviacowsky & Wulf, 2005;Grand et al, 2015;Hansen, Pfeiffer, & Patterson, 2011;Huang, Shadmehr, & Diedrichsen, 2008).…”