Working with heterogeneity: a pluralist strategy for evaluation

This paper explores the question of appropriate methodologies for use in the context of evaluation in the social policy arena. Evaluation in such contexts is characterised by the need to work in situations exhibiting a high degree of heterogeneity. The paper begins by presenting a critical analysis of a particular strategy for evaluation arising from within the systems tradition, namely contingency based approaches. It then presents an alternative way of approaching evaluation, which we have found particularly valuable for use where a high degree of variety exists. The pluralist strategy described is based on acknowledging and respecting difference and then working with it, rather than rationalising it away through seeking a "common' position. Elements of this strategy for evaluation will be illustrated with examples two case studies, in Belize and London.