„Many schools have introduced guidelines addressing the problem of distraction when students use digital devices in school. The content and design of such rules, as well as the capacity to enforce them, determine their effectiveness. When a school’s written statements or rules are too general, imprecise or lenient, they are unlikely to benefit teaching and learning with digital devices. Schools and teachers also need the time and capacity to enforce such rules. […] On average across OECD countries, 30 % of students in schools where the use of cell phones is banned reported using a smartphone several times a day, and 21 % reported using one every day or almost every day at school. These data show that cell phone bans are not always effectively enforced.“
OECD (Hrsg.), PISA 2022 Results, Vol.II. Learning During – and From – Disruption (2023), S. 255.