... Advantages of an external compared with an internal focus have been shown for various measures of movement effectiveness (e.g., movement accuracy, consistency) and efficiency (e.g., force production, muscular activity, heart rate, oxygen consumption). This benefit to performance and learning has also been demonstrated for a wide variety of skills, including sport skills (e.g., soccer, volleyball, basketball, swimming, running, kayaking, gymnastics), musical skills (Duke, Cash, & Allen, 2011;Mornell & Wulf, 2018), or activities of daily living (e.g., Fasoli, Trombly, Tickle-Degnen, & Verfaellie, 2002). The external focus advantage is independent of the task, performer's skill level, age, or (dis)ability (for reviews, see Lohse, Wulf, & Lewthwaite, 2012;Marchant, 2011;Wulf, 2007aWulf, , 2007bWulf, , 2013Wulf & Lewthwaite, 2010Wulf & Prinz, 2001). ...