The study's purpose was to analyse the involvement of parents in school and the information as an influential factor on this process. The other purpose was to examine teachers', parents' and school principals attitudes on the prevention of violence between students in school. In our study violence is the case for studying the involvement of the family in school. The subjects of the study were 298 parents of the urban environment and 394 parents of the rural environment, 400 rural environment teachers and 299 urban environment teachers involved in the quantitative study, were invented and selected through random sampling groups to take part in the research. 9 interviews were conducted with parents, 11 with teachers and 5 with school principals. Therefore, the mixed approach of the research was conducted. The total number of the involved in the study was 1416. The study used a mixed research approach, using in-depth interviews and a questionnaire designed for this study, while the research data were analyzed through descriptive and inferential statistics. The results support the assumptions of the study, by showing that the information has a positive link with statistical significance with the level of the parents' involvement in school. On the other side there exist two contradicting ascertainments between parents and the school about their perceptions and practices of information. The interviews have discovered a very concerning case and the fact that a part of the psychological violence between students does not get reported to the family or school.