- Hildegard Peplau developed the Interpersonal Relations Theory, which focuses on the nurse-patient relationship and emphasizes the interpersonal processes and therapeutic relationship between nurse and client.
- The theory identifies four phases of the nurse-patient relationship (orientation, identification, exploitation, and resolution) and six primary and secondary roles of the nurse.
- Peplau's theory views nursing as an interpersonal process and stresses the importance of understanding human behaviors and developing therapeutic relationships to help patients.