„In most education systems in 2022, students who attended classes regularly and punctually performed better in mathematics as compared to their peers who skipped school or classes and arrived late for school. […] On average across OECD countries, the difference in mathematics performance between truant and non-truant students was 27 points.“
OECD (Hrsg.), PISA 2022 Results, Vol.II. Learning During – and From – Disruption (2023), S. 110.