I'm thinking here about developmental and participatory research designed to affect social changes. I realise that an obvious answer to the question is 'it all depends'. I have in mind research that uncovers change strategies that will positively in community-wide behaviours, for example in ways that might lead to sustained responses to things like environmental sustainability, community safety or domestic violence, health and wellbeing or maintaining or improving biodiversity. The context I have in mind is probably more related to relatively low socio-economic or educational status. Is there a body of literature on this already? Can anyone share any thoughts?