„A longitudinal study run on 3 000 children in Singapore found that extreme video game use and problems such as social phobia, attention deficit disorder, anxiety and depression often occur together and are likely to be mutually reinforcing. Results from the PISA study show that extreme use of the Internet among children is associated with lower life satisfaction and school results, even when controlling for socio-economic backgrounds.“
OECD (Hrsg.), How’s Life in the Digital Age (2019), S. 60.