Systematic reviews combine a number of evaluations that are considered to satisfy a list of empirical criteria for measuring effects as reliably as possible. The results of these evaluations are then used to calculate and produce an overall picture of the effects that a given measure does and does not produce. Systematic reviews aim to systematically combine the results from a number of studies in order to produce a more reliable overview of the opportunities and limitations associated with a given crime prevention strategy.
The Swedish National Council for Crime Prevention (Brå) has therefore initiated the publication of a series of systematic reviews, in the context of which renowned researchers are commissioned to perform the studies on our behalf. In this study, the authors have carried out a systematic review, including a meta-analysis, of 59 scientific evaluations of anti-bullying programs from different parts of the world.
Year of publication: 2008
Authors: Maria M. Ttofi, David P. Farrington, Anna C. Baldry