Although the trait theories play an important role in leadership in the early period, the scholars have discovered other approaches from different view which emphasized the behaviors of specific leaders is called Behavioral Theory. Contrary to the Trait Theory, behavior theory is built based on the assumption of which people could be trained as the leader by designed programs. This theory claimed that the effectiveness of the leadership could be controlled by training.
The situational influences in terms of the relationship between specific approach and situation also make contribution to the effectiveness of leadership recently, as the outcome of success is not as simple as only depending on the traits and behavior. Fiedler contingency model explains how the situation interact the leadership style. The leadership style and situation would be matched and evaluated via LPC questionnaire. Moreover, the Cognitive Resource theory developed by Fielder indicated that the low stress would positively affect the effectiveness of leadership and high stress would negatively affect the effectiveness. In Hersey and Blanchard’s research on cognitive resource theory, the Situational Leadership Theory gives the specific explanation of the effectiveness among the follows and leadership style and implements in practice, while limited by the methodology of the test, this theory cannot be