Fiedler’s Contingency Theory shows

Fiedler’s Contingency Theory shows the relationship between the leader’s orientation or style and group performance under differing situational conditions.
The theory is based on determining the orientation of the leader (relationship or task), the elements of the situation (leader-member relations, task structure, and leader position power), and the leader orientation that was found to be most effective as the situation changed from low to moderate to high control.