The educational organization consists of a group of people working to provide education according to certain established relationships. The term "education" in its broadest sense refers to the provision of knowledge, the development of skills, the transmission of moral values, ensuring the intellectual and physical development of trainees, as well as their socialization and, finally, the production of suitable human resources for the needs of society. The ultimate goal of the research is to determine the purpose of education, the role of school and the concept of an effective school. For educational institutions or educational units, in order to fulfill their purpose, the existence of an effective administration is a necessary prerequisite. Besides, several surveys have shown that both pupils' progress and behaviour depend on the unit's characteristics and management.