“…To a certain degree, they are innate predispositions or personality traits Reber, 1995). Nevertheless, social and contextual (e.g., athletes' performance domain or age/stage of development) influences, as well as performance challenges experienced by athletes, may strongly impact upon their development and operationalization (Henriksen, Stambulova, & Roessler, 2010;Larsen et al, 2012;Wynn & Williams, 2012;MacNamara & Collins, 2015). Psychological characteristics serve an explanatory role for individual differences in consistently observable behaviours (e.g., choking under pressure) (Reber, 1995) and distinguish individuals' behaviours from each other as they influence and determine physical behaviours Reber, 1995).…”