Aim of the study:
The aim of the study was to point to the determinants of school achievement in adolescent students

Subject or material and methods:
To answer the research question - which predictors can explain school achievements in adolescents divided by gender - data was collected from 81 subjects using the Pressure Measurement Scale – PMS-18, Family Relations Questionnaire (FRQ) and the students’ average term score was taken into account.

Results:
In comparison with the boys, the girls’ grade point average results were significantly higher (p = 0.019).

Discussion:
In the studied sample of girls, however, neither resilience, nor dimensions of their relationship with the mother co-impacted the girls’ school performance. Nevertheless, the model in which all predictors were introduced turned out to be significant on the level of tendency.

Conclusions:
The obtained results showed that the significant factors impacting school achievements of boys include, apart from high resilience, the dimension of autonomy/control in their relationship with the mother.