Final answer:
Dorothea E. Orem developed The Self-Care Deficit Nursing Theory, which emphasizes patients' ability to take care of themselves and the role of nurses in assisting and educating patients in self-care.
Step-by-step explanation:
The nurse theorist Dorothea E. Orem developed The Self-Care Deficit Nursing Theory. This theory emphasizes the importance of patients' ability to take care of themselves and the role of nurses in assisting and educating patients in self-care. According to the theory, individuals have self-care needs that can be met through therapeutic self-care and compensatory self-care.