“…While these studies are imperative to our understanding of attentional focus, they are limited by the short duration of practice time which minimizes our understanding of the within and between day motor learning trajectories. The majority of studies exploring attentional focus have participants practice 20-100 trials over the course of one session (Chiviacowsky, Wulf, & Wally, 2010;Wulf et al, 1998;Wulf, Weigelt, Poulter, & McNevin, 2003), three sessions (Laufer, Rotem-Lehrer, Ronen, Khayutin, & Rozenberg, 2007), or five sessions (Porter, Makaruk, & Starzak, 2016), and assess learning via a retention test 24 hours later. However, there is a substantial jump in the attentional focus literature from the single or few session acquisition periods used, to large scale training studies of four weeks (Landers et al, 2015) and nine weeks (Makaruk, Porter, Czaplicki, Sadowski, & Sacewicz, 2012).…”