“…For instance, self-efficacy, defined by Bandura (1997) as the belief an individual has in being able to execute a specific task to achieve a particular outcome, is an individual-level cognitive factor that is essential for the adaptation process (Kozlowski et al, 2001;Maddux, 1995), either at the individual-level or team-level (Griffin & Hesketh, 2003;LePine, 2003;Pulakos et al, 2002). While self-efficacy is widely studied in sport and exercise contexts (Guillén, Feltz, Gilson, & Dithurbide, 2019), research on football refereeing has started to develop with the conceptual work of Guillén and Feltz (2011) that stimulated the development and adaptation of the Referee Self-Efficacy Scale (REFS) to different countries (Eskiyecek, Satici, Ozaltas, Savucu, & Gul, 2019;Guillén et al, 2019;Karaçam & Pulur, 2017;Labudek et al, 2019;Myers et al, 2012). Nevertheless, the study of self-efficacy as a predictor of adaptation is a novel contribution to the football and futsal refereeing team literature.…”