Educational leadership 10 Psychological aspects School management and organization School principals 5 Teacher-principal relationships 5 High school principals 3 Personality and motivation 2 Self-efficacy 2 Attitudes 1 Communication in management 1 Emotional intelligence 1 High school teachers 1 Professional ethics 1 Psychology 1 Public opinion 1 School improvement programs 1 School personnel management 1 Student activities 1 Teacher participation in administration 1 Teams in the workplace 1 Transformational leadership 1