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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Maslow's hierarchy of needs is a motivational theory that explains that people are motivated by five basic categories of human needs. These needs are physiological, safety, love and belonging, esteem, and self-actualization. There is a little scientific basis for this concept of a hierarchy of needs.
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Trait theories of leadership identify the specific personality traits that distinguish leaders from non-leaders. The trait model of leadership is based on the traits or characteristics of leaders that make them successful in their leading role. These theories use heritable attributes to predict leadership effectiveness.
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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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Functional leadership theory addresses specific leader behaviors that are expected to contribute most to the organizational effectiveness by focusing on how the leadership process occurs. The leader should ensure that all needs of the group get addressed.
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Humanistic theories of Leadership
Humanistic leadership is an ethical philosophic approach that recognizes the dignity and worth of each and every group or team member. This approach is based on building a leadership culture of trust, ethics, and empathy. Humanistic leadership is a set of principles founded on humanism with vision, mission, values, and expected behaviors. It is value-driven leadership based on principles such as humility, accountability, positivity, and love.
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The Path-Goal theory defines the characteristics of followers and organizational context and the corresponding leadership style best suited to these factors. A leader should adapt to a behavior that is most relevant for a given employee and work environment mix to achieve a goal. The application of theory drives increased employees' motivation, empowerment, and satisfaction resulting in increased productivity.
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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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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."
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Role theory is a concept in sociology and the role theory of leadership borrows these concepts to explain how people adapt to specific organizational and leadership roles. How the leaders and followers in an organizational context define their own roles, define the roles of others, how people act in their roles and how people expect people to act in their roles within the organization.
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Normative leadership theories are built on moral principles and tell leaders how they ought to act. Victor Vroom formulated the normative model of leadership that specifically address leader behavior explicitly built on moral principles or norms. Normative leadership theories tell leaders how they should act to raise the moral performance inside the working group and manage their different responsibilities.
