Peer-to-peer tutoring is a common learning support strategy in OECD education systems …

„Peer-to-peer tutoring is a common learning support strategy in OECD education systems, with findings from PISA 2018 showing that almost half of all students reported attending a school that provides peer-to-peer tutoring as a form of study help, on average across OECD countries.“
OECD (Hrsg.), Equity and Inclusion in Education – Finding Strength through Diversity (2023), S. 279.