What sort of cognitive processes are involved in cognitive behaviour therapy? Beyond Mahoney

Mahoney's recent book, Cognition and Behaviour Modification (1974), has produced some fierce interchanges in the pages of this journal. To me, the surprising feature of the controversy is that it has frowned on Mahoney's arguments about the adequacy of radical behaviourism. I had imagined that the philosophical assumptions of radical behaviourism had long ago been shown to be untenable. However, I do not wish to join in this discussion, or to try and improve on the arguments of Mahoney and Marzillier's (1976) defence of them.