Northouse, Introduction to Leadership: Concepts and Practice, 4e
SAGE Publishing, 2018
I. Leadership Philosophy Explained
2. These beliefs impact an individual’s leadership style.
4. Managers need to understand their core assumptions about human nature
and how they affect leadership style.
5. Proposed two general theories – Theory X and Theory Y
A. Theory X – 3 Assumptions
1. The average person dislikes work and will avoid it if possible.
Example: “I only go to work to get P-A-I-D”
2. Because people dislike work, they need to be directed, controlled, and
sometimes threatened with punishment or reminded of rewards to make
3. The average person prefers to be directed, wishes to avoid responsibility,
has little ambition, and wants security more than advice.
Example: Fast food workers who are told what tasks to do.
B. Theory Y – 3 Assumptions
1. The average person does not inherently dislike work. Doing work is as
2. People will show responsibility and self-control toward goals to
3. In the proper environment, the average person learns to accept and
seek responsibility.
Example: University students who created a streamlined checklist for
sorting and shelving books
C. Theory Z – blends collectivist and individualist thinking
2. Also maintains formal authority structures and recognition of individual
achievements.
3. De-emphasizes individual decision-making by one leader.
II. Leadership Styles Explained
Primary research done by Lewin, Lippitt, and White (1939)
2. Identified three distinct styles of leadership and the impact of style on
group members
A. Authoritarian leadership style
1. Similar to Theory X