Psychological aspects Teacher-principal relationships 27 Educational leadership 25 High school principals 8 Teachers 7 School management and organization 5 Employee motivation 4 Job satisfaction 4 Organizational commitment 4 School principals 4 Motivation in education 3 Attitudes 2 Job stress 2 Personality and motivation 2 Psychology 2 Academic achievement 1 Communication in management 1 Effective teaching 1 Employee loyalty 1 First year teachers 1 High school teachers 1 Islamic religious education 1 Mentoring in education 1 Physical education teachers 1 Professional ethics 1 Professional relationships 1 School personnel management 1 Self-efficacy 1 Study and teaching 1 Supervision of 1