Vroom's Expectancy Theory
The Vroom-Yetton model is designed to optimize for the current situation the leadership style for best decision-making. Its a decision model formulated with contribution from Arthur Jago on how to make group decisions. The leader must gather information from the team prior to making the decision and involves more people in the decision process.
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Early studies on leadership were done at Ohio State University using the Leader Behavior Description Questionnaire to identify the leader's observable behaviors. Ohio State study on leadership found two behavioral characteristics of leadership - people-oriented (consideration) and task-oriented (initiating structure) leadership style.
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Strategic Contingencies Theory is a theory of intra-organizational power. The power of a subunit or individual depends on a few contingencies and that the more contingencies are controlled by a subunit, the greater is its power. The theory focuses on tasks that need to be done in the form of problems to be solved, thus de-emphasizing personality.
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The four theory of leadership was formulated after studying hundreds of leaders and the model includes four basic dimensions of effective leadership - support; interaction; facilitation; goal emphasis, and work facilitation. This model was tested as a predictor of an organization's effectiveness.
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Action Centered Leadership is a model developed by John Adair and focuses on the three responsibilities of a leader which are achieving the task, managing the team, and managing individuals. All these action elements are mutually dependent and important for any leader.
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In the field of communication studies, there are numerous models. No one model is suitable for all purposes and all levels of analysis. Some common models are known as Lasswell Model, George Gerbner Model, David Berlo Model, Shanon and Weaver Model, Osgoods Model, and Schramm Model. All these describe the four components of the communication process, namely, the source (communicator), the message, the channel, the receiver (audience).
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Communication has as its central objective the transmission of meaning. The process of communication is successful only when the receiver understands an idea as the sender intended it. How does a message or an idea travel from one person to another? To transmit our message, we engage in a sensitive and complex process of communication, with different elements like sender, message, channels, receiver, noise, and feedback.
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David Kolb produced this popular model for learning in 1984. The model suggests four stages of learning which most learners go through in order to learn effectively. Leaming is itself a process of change. Something is added to our perception and prepared us for the next impression, which will change our understanding yet more, however minutely. The Kolb contribution is a significant one because it practically equates change and learning.
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Situational Leadership - Application
Situational Leadership Theories are well known and frequently used for training leaders within organizations. Practical application is how to choose the right leadership approach for the situation. The theory emphasizes leader flexibility and advises leaders to flex their style based on the followers' needs. Leaders must adapt their leadership style to fit the prescribed task, understanding given situation/maturity of followers.
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Leader-Participation Model provides a set of rules to determine the form and amount of participative decision making. It helps identifies different ways a decision can be made based on the degree of follower participation. It proposes a method for leaders to involve all members of the organization work together to make decisions.
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The Valence Model of Leadership
The valence model of emergent leadership is based on a group-development sequence. As per the valence model, the process of emergent leadership passes through three distinct stages; Orientation, Conflict, and Emergence. Group members willingly start following and obeying the leader who has passed the "emergence threshold."
