„School-based extra-curricular activity has been identified as being a particularly powerful and positive form of extra-curricular activity for enhancing achievement (i.e., more so than home- or community-based extra-curricular activity). Being school-based, this form of extra-curricular activity tends to increase students’ identification with the school, promote positive school-based values, brings students into closer proximity with teachers who can help them academically, and promote positive peer affiliation – all of which are important factors in academic achievement – and apparently especially effective for low ESCS migrant students.“
EU-Kommission (Hrsg.), Against the Odds – Academically resilient students with a migrant background and how they succeed (2019), S. 51f.