Treating bullying as everyone’s problem reduces incidence in primary schools

The largest trial of its kind in the UK has shown how a low-cost anti-bullying programme can improve social dynamics in primary schools and reduce victimisation

Sad-looking boy being ignored by laughing group of schoolchildren

Credit: Pexels/Photo by Mikhail Nilov

The year-long trial of the KiVa school based bullying prevention programme was implemented in over 100 primary schools in England and Wales and involved over 11,000 students. It significantly reduced incidents of bullying and was equally effective across socio-economically diverse schools and from small rural schools to large, urban ones. The study was funded by the National Institute for Health and Care Research (NIHR).

The ‘KiVa’ programme focuses on the behaviour of all children and emphasises the role that bystanders can play. Children in schools that implemented the programme were 13% less likely to report being bullied, compared to schools using standard procedures. The schools undertaking KiVa also reported that their children were more empathetic towards victims and that children’s problems with their peers were reduced. Economic analyses by public health economists from Bangor University found that KiVa is also a low-cost intervention, which is particularly important given budget restrictions in schools.

The project was led overall by Bangor University working with the Universities of Exeter, Oxford, Warwick, and Birmingham.

Professor Matthew Broome, Director of the Institute for Mental Health at the University of Birmingham, said: “Bullying can lead to long-term poor physical and mental health outcomes into adult life, and hence reducing bullying can lead to preventing physical and mental illness and a profound public health benefit for society.

“In Birmingham, our team recruited 29 schools and over 5000 key stage 2 children across the city, working with pupils, parents, and teachers to deliver the KiVa intervention.  Hearing from the children themselves, they found being part of the study hugely beneficial, helping in both their home and school life. Schools were hugely supportive of KiVa and we want to enshrine anti-bullying interventions into our city to benefit children further into the future.

Bullying can lead to long-term poor physical and mental health outcomes into adult life, and hence reducing bullying can lead to preventing physical and mental illness and a profound public health benefit for society.

Professor Matthew Broome, Institute for Mental Health

Professor Judy Hutchings, from the Centre for Evidence Based Early Intervention at Bangor University, said: “Bullying in childhood is one of the biggest risk factors for later mental health problems in childhood, adolescence and beyond. Unfortunately, it is widespread in UK schools; and while all schools are required to have a bullying policy, it’s rarely evidence-based. The KiVa ‘whole school’ approach has had really significant effects on bullying in other countries because it focuses on everyone’s behaviour, and removes the social rewards usually gained by the perpetrators.”

The Finnish Kiusaamista Vastaan (“Against Bullying”), or KiVa, programme, is based on research that demonstrates that bystanders – children who are present, but not directly involved in bullying incidents – have a major role to play in defending the victim, making bullying less socially acceptable, and so reducing the motivation of bullies.

The research is the largest randomised controlled trial to date of the KiVa programme outside Finland, involving 118 schools across England and Wales. Half the schools adopted Kiva and half continued standard practice. Data were obtained from 11,111 pupils who filled in surveys about bullying, and from teacher-reported pupil behavior questionnaires on 11,571 pupils, both before and after the trial. The trial ran for a full academic year. However, KiVa is designed to be embedded into ongoing school practice and many schools involved in the trial are continuing to use the programme.

The schools on the KiVa arm of the trial set up fortnightly lessons for pupils which focused on recognising and responding to bullying and helping to support victims. There were also whole-school assemblies on bullying, poster campaigns and information for parents. Teachers supervising breaktimes wore high-visibility vests. For every identified bullying incident, staff followed KiVa’s recommended actions. Rather than the traditional response of blame and punishment for the bully, the schools had individual discussions with the children involved and made sure that the bullying pupil committed to clear actions to support the victim.

The trial was managed by the Centre for Trials Research, Cardiff University. The Children’s Early Intervention Trust charity, that has the UK KiVa dissemination license, organised intervention costs, training schools and implementation.

The results from the UK trial of 13% reduction in bullying are less compelling than those from earlier studies in other European countries. However, the UK trial took place during the Covid-19 pandemic, which involved major classroom disruption for pupils and considerably higher levels of absenteeism, and researchers believe this may have affected the results.

Lucy Bowes, Professor of Psychopathology at the University of Oxford, said: “Being bullied may have devastating consequences for children and young people, including increasing the risk of mental health difficulties such as anxiety or depression, as well as poor school outcomes. This means that any improvement is worthwhile and even small percentage changes can have a substantial impact for those individual children and will cumulatively improve the situation in the school over time. The Finnish data show year-on-year improvements over seven years for schools that continue with the programme. Addressing bullying in schools is a major public health concern, and evaluating anti-bullying programmes used in our schools is vital.”

‘The effects and costs of an anti-bullying programme (KiVa) in UK primary schools: a multicentre cluster randomised controlled trial’ is published in Psychological Medicine

Notes for editors

  • For media enquiries please contact Beck Lockwood, Press Office, University of Birmingham, tel: +44 (0)781 3343348.
  • The University of Birmingham is ranked amongst the world’s top 100 institutions. Its work brings people from across the world to Birmingham, including researchers, teachers and more than 6,500 international students from over 150 countries.
  • Bowes. L., Babu, M., Badger, J. R., Broome, M, R., Cannings-John, R., Clarkson, S.,  Coulman E.,  Edwards, R. T., Ford, T., .Hastings R. P., Hayes, R., Lugg-Widger, F.,  Owen-Jones, E., Patterson, P., Segrott, J., Sydenham, M., Townson, J.,  Watkins, R.C., .Whiteley, H., Williams, M.E.,  the Stand Together Team and Hutchings, J., (2024) The effects and costs of an anti-bullying programme (KiVa) in UK primary schools: a multicentre cluster randomised controlled trial. Psychological Medicine. Published online on 8th November 2024 DOI: 10.1017/S0033291724002666 
  • The primary outcome was assessed by pupil self-reported bullying-victimisation using the Olweus Bully/Victim Questionnaire, as well as other surveys on wellbeing, empathy and bullying roles. Teachers also completed the Strengths and Difficulties questionnaire on pupils’ behaviour.
  • Economic evaluation was conducted by the Public Health and Prevention Economics Research Group (PHERG) at the Centre for Health Economics and Medicines Evaluation (CHEME) at Bangor University.
  • The study was funded by the UK National Institute for Health and Care Research (NIHR) Public Health Research programme (17-92-11). Intervention costs were funded by the Rayne Foundation, GwE North Wales Regional School Improvement Service, Children’s Services, Devon County Council and HSBC Global Services (UK) Ltd. 
  • The Bangor based Children's Early Intervention Trust (registered charity) was set up in 2007 to support the needs of children with challenging behaviour and their families and staff that work with them. It does this through disseminating evidence of effective programmes and through training and supporting people working with children and families including social services, teaching, nursing, and other NHS staff as well as staff in the voluntary sector. The income earned from its training activity is used to fund research activity within Bangor University that shares the same aims. It has over the years funded many research students and projects based within the Centre for Evidence-Based Early Intervention. As well as training and supporting funding for programmes targeting parents, it is the registered dissemination agency for the KiVa programme across the UK. In this role it provides training for school-based staff as well as supplying resources for the KiVa programme. 
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