“…Past research shows that parents' level of education has a large impact on students' school performance. However, in addition to students' family background, the social composition of schools also significantly influences their results in the national Hungarian competence measurement (Bacskai, 2015;Széll, 2015;Fehérvári, 2016;Pusztai, 2009), in the national Romanian competency measurement (Barabás, 2020) or the PISA measurement (Pusztai & Bacskai 2015). Assuming similar parental and school backgrounds, geographical features also play a major role in children's performance (Garami, 2014).…”