Aim: The aim of the undertaken research was to diagnose the students’ perception of the level of openness in relationships established in the family and school environment. Methods: The research was carried out among students of general secondary schools. The results were collected based on the Parental Attitude Scale in the study of M. Plopa (version for the youth) and the questionnaire for the diagnosis of openness developed on the basis of the dimensions distinguished by D.W. Johnson. Results: The obtained results indicate to what extent students show openness in interpersonal contacts in the family and school environments. Students recognized the importance of openness in communication. They emphasized that it promotes the development of relationships and were able to determine its usefulness. Many students did not manage to connect the messages they conveyed with past experiences. Most of the respondents incorrectly stated that one should always be open and not according to the situations in which they participate. Conclusions: Among students who perceived the average intensity of positive attitudes of mothers and fathers, the level of openness in relations with parents and teachers is diversified. Adequate openness in communication allows for maintaining the equivalence of subjects of interaction in multidimensional relationships between parents – children and teachers – students. It provides partnership in dialogue, conditioning proper communication in the process of education.