Final answer:
The term interchangeable with 'fundamentals of leadership' is 'Basic principles of leadership', focusing on transactional and transformational leadership styles as important leadership foundations.
Step-by-step explanation:
The term interchangeable with fundamentals of leadership is Basic principles of leadership. Leadership is a key component of management where various styles like transactional and transformational are researched within Industrial-Organizational (I-O) psychology. Transactional leadership focuses on supervision and achieving organizational goals via a system of rewards and punishments. Conversely, transformational leadership is characterized by leaders who are charismatic, inspirational, intellectually stimulating, and considerate, aiming to bring change within organizations.
Furthermore, leadership theories such as Theory X and Theory Y present different assumptions about employee motivation and management style. Theory X aligns with a more transactional approach, while Theory Y has similarities with transformational leadership, emphasizing that workers are inherently motivated and seek responsibility.