“…Increasingly, the "third wave" therapies such as Acceptance and Commitment Therapy (ACT; Hayes, Strosahl & Wilson, 1999) and mindfulness-based therapies (Chiesa & Serretti, 2011;Grossman, Mieman, Schmidt & Walach, 2004) have been evaluated as intervention models to reduce psychological distress in carers of individuals with developmental disabilities. The results of these evaluations of acceptance-based (e.g., Blackledge & Hayes, 2006;Noone & Hastings, 2009;2010) and mindfulness-based (e.g., Benn, Akiva, Arel & Roeser, 2012;Ferraioli & Harris, 2012;Singh et al, 2006; interventions are encouraging in terms of stress reduction outcomes. However, theory building research, such as evidence for the mediating role of acceptance and mindfulness processes in understanding carer wellbeing generally post-dates these intervention evaluation research developments.…”