Pereira, Maria GouveiaVala, JorgePalmonari, AugustoRubini, Monica2013-10-122013-10-122003European Journal of Psychology of Education, 18, 309-3250256-2928http://hdl.handle.net/10400.12/2418This study analysis the relationship between perceptions of the justice of teacher' behaviour and (a) the legitimation of school authority and (b) the legitimation of institutional authorities outside school. 448 adolescent students participated in the study. In a questionnaire participants were asked about (a) perceptions of the justice of teachers' behaviour; (b) evaluation of the school experience; and (c) evaluation of institutional authorities. Results show that the evaluation of the justice of teacher behaviour, in particular relational and procedural justice, have an impact on the legitimation of the authority of teachers and on the evaluation of institutional authorities outside school. Results also show that the legitimacy granted to teachers is a mediator variable between perceptions of justice in school and evaluation of authorities outside school. These results are discussed in the context of the studies on the relationship between school experience and adolescents I attitudes towards authorities, and in the framework of the "Relational Model of Authority" and of the "Group Value Model".engjournal article