Final answer:
The critical contingency variable in the Hersey-Blanchard situational model of leadership is Subordinate maturity. This model assesses the maturity level of subordinates to determine the most effective leadership style, emphasizing a flexible approach to foster a strong leader-follower relationship.
Step-by-step explanation:
The critical contingency variable in the Hersey-Blanchard situational model of leadership is Subordinate maturity.
Hersey-Blanchard's model emphasizes that the effectiveness of a leadership style is contingent on the maturity level of the subordinates. Maturity is considered in terms of the ability and willingness to take responsibility for directing one's own behavior. Leaders must adjust their style to fit the developmental level of their followers, thus leadership must be flexible to respond to the varying levels of subordinate maturity. This tailoring of leadership styles helps ensure that the needs of both the leader and the followers are met, promoting a positive leader-follower relationship.