Educational leadership School management and organization School principals 45 High school principals 30 Teacher-principal relationships 24 Psychological aspects 10 Transformational leadership 7 High school teachers 6 Teachers 6 Attitudes 5 Curricula 5 Job satisfaction 5 School discipline 5 School improvement programs 5 Schools 5 Self-efficacy 5 Student activities 5 Case studies 4 Education 4 Multiple intelligences 4 Curriculum planning 3 Management 3 Professional relationships 3 School-based management 3 Study and teaching (Secondary) 3 Assistant school principals 2 Classroom management 2 Decision making 2 Education, Primary 2 Educational planning 2