“…Adolescents' perceptions of the intervention instructor also determined intervention adherence. Research has shown that positive instructor role models can significantly increase youth's physical activity levels and subsequent intention to exercise (Eddolls, McNarry, Stratton, & Mackintosh, 2016;Humbert et al, 2008;Olivares, Cossio-Bolaños, Gomez-Campos, Almonacid-Fierro, & Garcia-Rubio, 2015). Equally, however, it has been suggested that poor role models can be detrimental to exercise participation (Slater & Tiggemann, 2010).…”