The purpose of this research study was to explore the effectiveness of the KiVa anti-bullying programme with Grade 4 learners in a primary school, located in the Eden Central Karoo District of the Western Cape. Since bullying is a worldwide phenomenon, it is important to explore to what extent it is an issue in South Africa. International anti-bullying programmes, which are well researched and highly recommended, are described with an overview of the integration of systems theory with the practicalities of this research project. A mixed methods intervention design was used to collect data. Grade four learners completed questionnaires prior to and after implementation of the intervention programme, which comprised the quantitative data. The experiment schools Grade 4 Life Skills teachers led the implementation of the programme. Qualitative data were collected through semi-structured interviews with the Grade 4 teachers and the principal of the experiment school. The findings demonstrate that the implementation process over less than a year, did raise awareness and certain skills were developed and practised by learners. The effectiveness of the KiVa anti-bullying programme during a short period of six months, did establish consciousness and a change in attitude and behaviour. A statistically significant difference for two of the three categories, experiences at school (bullying) and about your life (well-being), of the questionnaire from before the implementation to after the implementation of the intervention programme was indicated at the experiment school. Thus, implications for future research regarding the implementation of the KiVa school-based programme are suggested. / Psychology of Education / M. Ed. (Psychology of Education)