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The Sibling Interaction and Behavior Study (SIBS) is a study of >600 adoptive and non-adoptive families. [1] The adoption study design allows one to disentangle the environmental and genetic influences on a phenotype, including psychological phenotypes. The assessment wave structure and protocol are similar to the Minnesota Twin Family Study ...
The Michigan leadership studies, along with the Ohio State University studies that took place in the 1940s, are two of the best-known behavioral leadership studies and continue to be cited to this day. These theories attempt to isolate behaviours that differentiate effective leaders from ineffective leaders.
Both tests and studies have been conducted as to how siblings interact and how age, gender, and the number of siblings can create a triad. A majority of the population has doubled over the last decade and recently has been proven that the more parents conceive, the better outcome a child will have when relating to other siblings.
The Integrated Psychological Theory of leadership attempts to integrate the strengths of the older theories (i.e. traits, behavioral/styles, situational and functional) while addressing their limitations, introducing a new element – the need for leaders to develop their leadership presence, attitude toward others, and behavioral flexibility ...
Consideration and initiating structure are two dimensions of leader behavior identified in 1945 as a result of the Ohio State Leadership Studies. Reviews of research on these dimensions are described in Stogdill's Handbook of leadership: A survey of theory and research and Littrell's Explicit leader behaviour.
Functional leadership theory (Hackman & Walton, 1986; McGrath, 1962) is a theory for addressing specific leader behaviors expected to contribute to organizational or unit effectiveness. This theory argues that the leader's main job is to see that whatever is necessary to group needs is taken care of; thus, a leader can be said to have done ...
Functional theories: Widely used approaches like Kouzes & Posner's Five Leadership Practices model and Adair's Action-Centered Leadership theory assume that once the leader understands – and has been trained in – the required leadership behaviors, he or she will apply them as needed, regardless of their personality. However, as with the ...
In Forsyth, the leadership substitute theory is defined as "a conceptual analysis of the factors that combine to reduce or eliminate the need for a leader." [1] A leader may find that behaviors focusing on nurturing interpersonal relationships, or coordinating tasks and initiating structure, are not required in every situation. A study by Kerr ...