one of the high citation researches surrounding model of transformational leadership's impact on organizational citizenship behavior has been conducted by podsakoff, mackenzie, moorman and fetter (1990). using structural equation modeling, current study aims at testing this model and also 4 other models in schools on a sample including 652 teachers and 131 principals. results showed that p...

Increasing attention is being paid to the question of why some people emerge as leaders, and we investigated the effects of persistent exposure to poverty during childhood on later leadership role occupancy. We hypothesized that exposure to poverty would limit later leadership role occupancy through the indirect effects of the quality of schooling and personal mastery, and that gender would mod...

In this conceptual paper, we present a structuration-based theory of leadership behaviours in virtual teams, that is to say, in self-organizing technology-supported small groups such as Free/Libre Open Source Software development teams. Such teams are often composed of members of relatively equal status or who are so disparate in background that formal organizational status seems irrelevant, re...

T he single most important ingredient for transformational high-performance improvement is leadership; yet we have a leadership vacuum at the frontline. The 3 Ts of truth, trust, and teamwork offer a conceptual framework of actions that can be taken to engage trustees, senior administrative leaders, independent and employed physicians, and frontline nurses and staff who are the servant leaders ...

This article assesses 25 years of empirical leadership research in 11 top journals with the goal of understanding current practice and future needs for drawing solid conclusions about leadership at different hierarchical levels of the organization, as well as leadership’s effects on individuals, teams, units and organizations. We summarize the hierarchical level of leader and outcome level of a...

Most medical faculty receive little or no training about how to be effective teachers, even when they assume major educational leadership roles. To identify the competencies required of an effective teacher in medical education, the authors developed a comprehensive conceptual model. After conducting a literature search, the authors met at a two-day conference (2006) with 16 medical and nonmedi...

Emergent leaders within groups have been witness in leadership research after bulk of formal or established leader research. Without formal organizational authority or power, how emergent leadership influences group members under such situation? Emotional recovery and emotional threshold, the two dimensions of a new construct of emotional stability (Li, 2005), were used to predict emergent lead...

this paper describes a simple, physically-based conceptual model utilizing watershed drainage characteristics for rainfall-runoff simulation. this conceptual physiographic model is essentially based on the work of najafi (2003), which has led to a model compris-ing the main tributary subwatersheds and a single main channel subwatershed. the ki-nematic wave (kw) theory is used to describe flow o...

Effective school leadership is a basic tenet for successful school since the outcome of a school depends on the quality of leadership. As a current popular form of leadership, distributed leadership focuses on the leadership of all team members in a school. Research shows that successful leadership depends on the context and time of a school. This paper tries to conceptualize distributed leader...