Early family/parent training (EFPT) programmes constitute a set of methods for reducing children's behavioural problems and later delinquency that for some time have been the focus of increasing attention. But how well do they work? What does the research tell us?

The Swedish National Council for Crime Prevention (Brå) has initiated the publication of a series of systematic reviews, in the context of which internationally 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 55 high quality evaluations from different parts of the world.