Hazelden Co-occurring Disorders Program (CDP): Screening and Assessment Curriculum 1 This curriculum is a must-use tool that helps clinicians evaluate patients with an effective, protocol-driven method so that appropriate treatment options can be addressed with regard to each patient's symptoms, history, and motivation to change. Included are specific measures for screening, assessment, differential diagnostics, and stage of motivation to address and treat both addiction and psychiatric problems in patients. "The Hazelden Co-occurring Disorders Program (CDP)" was developed and authored by national leaders in the research and treatment of co-occurring disorders. The program authors are faculty members of Dartmouth Psychiatric Research Center, Department of Psychiatry, Community and Family Medicine Department, and Dartmouth Medical School. The Dartmouth Psychiatric Research Center developed and tested the Integrated Dual Disorder Treatment (IDDT) model, an established evidence-based practice designed for people with severe mental health disorders. "The Co-occurring Disorders Program (CDP)" draws upon the numerous randomized controlled trials using the IDDT model and adapts them for patients with non-severe mental health disorders.