People with strong obsessional doubt and fixed, overvalued obsessional beliefs are often resistant to cognitive-behaviour therapy and difficult to help. In over ten years of clinical practice with people with obsessive-compulsive disorders (OCD), it became clear to Kieron O'Connor, Frederick Aardema and Marie-Claude Pélissier that current cognitive explanations of such disorders are often incomplete.

Beyond Reasonable Doubt presents an innovative approach that brings together reasoning research, philosophy of mind and language, and cognitive therapy to understand OCD. It outlines the development and validation of an inference-based approach to treating OCD, which addresses the inductive and often imaginary narrative leading to obsessional inferences.

Clinical psychologists, psychiatrists and other mental health workers will find this book of great interest. Also included is a complete treatment manual of inferential based therapy (IBA), together with an appendix of supplementary treatment cards for the client that are available online at: www.wileyeurope.com/go/oconnor.