Final answer:
The situational leadership theory proposes that leaders adapt their style based on the follower's readiness level. Leaders should adjust their approach depending on the follower's ability and willingness to perform tasks.
Step-by-step explanation:
The theory that proposes that effective leaders adapt their leadership style according to how willing and able a follower is to perform tasks is known as the situational leadership theory.
This theory, developed by Paul Hersey and Ken Blanchard, suggests that leaders should adjust their leadership style based on the follower's readiness level. The follower's readiness level is determined by their ability and willingness to perform tasks, which can vary depending on their skills, knowledge, experience, and motivation.
For example, if a follower is highly willing and capable of performing a task, the leader can use a delegating style, where they give the follower more autonomy and freedom to make decisions. On the other hand, if a follower is unwilling or unable to perform a task, the leader may need to use a more directive style, providing clear instructions and guidance.