OCD Challenge is an online, interactive, behavioral program designed to help people suffering from Obsessive Compulsive Disorder. The program was built by psychologists who are leaders in the field of behavior therapy and have a specialization in the area of OCD. OCD Challenge has three Modules: Assessment, Gaining Awareness and Intervention. Users will be guided through the Modules and taught skills and strategies for managing their OCD behavior. OCD Challenge uses the principles of exposure and response prevention (the treatment of choice for OCD) to help the user to confront and challenge their OCD. OCD Challenge is not therapy and there is not a therapist on the other end of the computer telling you what to do. Instead, OCD Challenge is a program built to interact with the user in a way that is interesting, useful, and moves the user toward change.