Identifying the Underlying Mechanisms of Change During Acceptance and Commitment Therapy (ACT): A Systematic Review of Contemporary Mediation Studies

Background : Mediation studies test the mechanisms by which interventions produce clinical outcomes. Consistent positive mediation results have previously been evidenced (Hayes et al ., 2006) for the putative processes that compromise the psychological flexibility model of acceptance and commitment therapy (ACT). Aims : The present review aimed to update and extend the ACT mediation evidence base by reviewing mediation studies published since...