Final answer:
The staff nurse is using assertive communication, which involves expressing oneself openly and respectfully. In group leadership, an authoritarian style represents a top-down communication pattern.
Step-by-step explanation:
When the staff nurse states, "I am sorry, I am responsible for the situation," while communicating to the nurse leader, this type of communication pattern is known as assertive communication. This pattern is characterized by the ability to express feelings, thoughts, and beliefs in an open, honest, and direct way, while still maintaining respect for others. It contrasts with aggressive, passive, and passive-aggressive communication styles.
Communication Patterns in Group Leadership
Regarding group leadership, an authoritarian leadership style is associated with a communication pattern that flows from the top down. This type of leadership is characterized by strong control from the leader, clear expectations, and little input from group members, thus making the leader the primary source of decision making and direction.