Social and behaviour change (SBC) programmes are essential components of HIV prevention and represent one of the six basic programmes highlighted under the UNAIDS investment approach. Social and behaviour change efforts aim to reinforce protective sexual behaviours by addressing knowledge, attitudes, skills and social norms using a combination of strategic approaches and methods. Although social and behaviour change is difficult to evaluate through randomized controlled trials (RCT), a range of evidence suggests that they can be effective if designed and implemented well.
