The philosophical assumptions across the ‘three waves’ of cognitive–behavioural therapy: how compatible are they?

Abstract

SUMMARYUnderstanding the philosophical foundations of cognitive–behavioural therapy (CBT) is vital to drive theory and research forwards and to effectively conduct therapy using varied methods and techniques from different CBT models that may be rooted in distinct philosophical tenets. In the evolution of CBT as the most empirically validated form of psychotherapy, each of its three waves (behavioural therapy, cognitive therapy and acceptance-based therapies) has brought unique contributions to improve its effectiveness. Although some of the philosophical assumptions underlying the different CBT waves may be considerably dissimilar, in this clinical reflection I review the distinctive and cross-cutting features of such backgrounds, while suggesting a conciliation of epistemological perspectives that is capable of informing the practice of CBT in a consistent manner.