An oncology practicum was developed jointly by a university department of psychology and an outpatient cancer center affiliated with the university's medical school and the area's teaching/county hospital. Beginning in 2004, psychology doctoral students in clinical psychology and counseling psychology and their supervisor have provided services in all areas of the cancer center, in a stem-cell transplant unit in the hospital, and participated in patient care conferences and Grand Rounds. The psychology group has counseled patients and families as part of a multidisciplinary health care team. This paper discusses planning, implementation, evaluation, and continuing growth and development ofthe practicum, as well as results of a satisfaction survey of doctoral students who have participated in the practicum. Health psychology and practicum competencies are also discussed in the context of a specialized health practicum in a complex medical setting. This is a unique but also practical and portable health psychology practicum model.Keywords: health psychology training, oncology practicum, program development Extemal practicum training in health settings is extremely important for doctoral students interested in clinical health psychology. Practicum experience in health arenas can increase a student's knowledge base, strengthen his or her confidence in working with patients and multidisciplinary teams, and even help that student "stand out" when applying to intemship sites, whether health psychology sites or more general sites. It is also the case that an extemal practicum can contribute to students' development of the clinical competencies, in this case clinical health practicum competencies, that prepare them for intemship. Extemal practicum placements are common for most if not all doctoral programs, and development of such placements may be initiated by the program, the extemal agency, or both.The current paper briefly highlights the competency movement, including both clinical health and practicum competencies. It then describes in detail the creation and development of a health psychology practicum in an Oncology/Hematology setting. We first describe the setting itself and the importance of psychosocial services in such a setting. We then detail the various phases of practicum development, including (a) preparation, (b) implementation, (c) evaluation, and (d) revision and continuing developSusAN S. HENDRICK received her PhD from Kent State University. She is Paul Whitfield Horn Professor of Psychology at Texas Tech University, Lubbock. A member of the Counseling Psychology Program, she has published widely in the area of close relationships. Since 2004, she has supervised the Psychology Team at the Southwest Cancer Center.CLYDE HENDRICK, PhD, University of Missouri, eamed his degree in psychology with a minor in sociology. He is currently Paul Whitfield Hom Professor of Psychology at Texas Tech University. He has published widely in the interdisciplinary field of personal relationships. His avocational interests...