April 2018: How systematic is international bullying and what relationship does it have with mathematics in the fourth grade?

Rutkowski, David Rutkowski, Leslie
IEA (2018)
Children are bullied in primary schools around the world and those who are bullied tend to do less well in mathematics.The amount of bullying varies widely but, on average, nearly half of all children in the TIMSS 2015 study report being bullied at least once a month. Bullying policies need to begin in the early years and TIMSS provides an important resource for policymakers to monitor both existing and new anti-bullying interventions.