EN
The presented study had two objectives - to verify whether there is a difference between the poor and non-poor people in self-esteem and aggression; and to verify if poverty moderates the relationship between self-esteem and aggression. The study hypothesize that people included in the group of poor will experience lower self-esteem and higher aggression compared to the group of non-poor, and additionally that poverty will moderate the link between self-esteem and aggression. The research sample consisted of 86 employed persons (48 women). The inclusion criteria were as follows: (1) aged between 25 and 59 (M = 33.58 SD = 8.10); and (2) a permanent monthly income. Two research tools were used - self-esteem was investigated through the Rosenberg Self-Esteem Scale (RSES; Rosenberg, 1965) and aggression was assessed using the Buss-Perry Aggression Questionnaire (BPAQ; Buss & Perry, 1992). The study confirmed that poverty is a determinant of impaired self-esteem, but based on the available evidence, it is not possible to conclude whether or not poverty affects aggression. Moreover, the effect of poverty on moderating the relationship between self-esteem and aggression was confirmed. The link between aggression and self-esteem was found to be weak in the group of poor people, whereas aggression was shown to be a relatively strong predictor of self-esteem in the group of non-poor people. The limitations of this study are the inclusion criteria for the poor (up to 400€), the sample size and the sampling method.