Abstract: The problem, which is the subject of discussion of this paper, concerns the relationship between the structure of aggressiveness, the social maladjustment of the youth and the ineffective social control from the primary groups. The one of the possibilities to the explanation of these relationships is the reference to the main theses of Travis Hirschi control theory.The study was conducted in March 2013. The hypotheses were tested on 100 students from vocational schools. In the study was used the survey research and self-report method. For the purpose of verification hypotheses was used Pearson's correlation coefficient. The results confirmed only part of the assumed relationships between variables.

Abstract: This paper concerns social maladjustment youth and his personality and situational correlates. The paper refers to Robert Agnew’s general strain theory. According to Agnew, strain theory focuses on negative relationships with others: that is, relationships in with others do not treat the individual as he or she would like to be treated. The main objective of the empirical research is to understand the relationship between social maladjustment and the sense of strain, aggression, self-efficacy in the group of pupils. An additional goal is to analyze the relationship between the sense of strain, self-efficacy and the structure of the aggressiveness of the respondents. The study was conducted in March 2013. The hypotheses were tested on 57 pupils. The results confirmed most of the assumed relationships between variables.