“…While some reviews have concluded theory-based interventions are more effective than non-theory-based interventions (e.g., Taylor, Conner, & Lawton, 2012;Webb, Joseph, Yardley, & Michie, 2010), others have not (e.g., Prestwich et al, 2014;Roe, Hunt, Bradshaw, & Rayner, 1997). An emergent approach to understanding health behaviour change distinguishes between behavioural initiation and maintenance phases as well as the beliefs (e.g., self-efficacy, outcome satisfaction), skills, and strategies that support self-regulatory efforts during each phase (Rothman, 2000;Schwarzer, 2008Schwarzer, , 2016. An emergent approach to understanding health behaviour change distinguishes between behavioural initiation and maintenance phases as well as the beliefs (e.g., self-efficacy, outcome satisfaction), skills, and strategies that support self-regulatory efforts during each phase (Rothman, 2000;Schwarzer, 2008Schwarzer, , 2016.…”