“…While there is no widely accepted definition of change (Roussos, 2013), researchers have utilised quantitative process-outcome designs, microanalytic/sequential process methodologies, as well as studies of significant events and helpful factors (Elliott, 2010). These different research designs have utilised; pre-post outcome measures, criteria for clinical significance, reliable change, effect sizes, qualitative accounts, and measures of subjective well-being or functioning to describe change (Jacobson & Truax, 1991;Kazdin, 2008;Mueller, Tolman, Higa-McMillan, & Daleiden, 2010). From a phenomenological perspective, therapeutic change has been categorised as occurring either gradually, suddenly or a combination of both (Fosha, 2006;Gianakis & Carey, 2011).…”