These cluster matrices provide duties and tasks that form the basis of instructional content for secondary, postsecondary, and adult training programs for health occupations. The eight clusters (and the job titles included in each cluster) are as follows: (1) dental assisting (dental assistant); (2) dental laboratory technology (dental laboratory technician); (3) radiology (radiology aide); (4) medical assisting (medical assistant); (5) medical laboratory (medical laboratory aide/phlebotomist); (6) optometric assisting (dispensing optician, optometric assistant); (7) rehabilitation services (physical therapist assistant, physical therapy aide, occupational therapy assistant, occupational therapy aide, activity aide, psychiatric aide); and (8) nursing occupations (home health aide, geriatric aide, nurse assistant, practical nurse, professional nurse--associate degree). Representative duties, for which 1 to 69 tasks are listed, include communicating information; providing a clean, safe environment; providing personal care; providing therapeutic measures; performing diagnostic measures; performing management functions; administering medication; providing psychosocial care; and providing care for patient with special needs. (YLB)