Testing middle range theories in realist evaluation: a case of a participatory organisational intervention

Purpose Realist evaluation seeks to answer the question of “what works for whom in which circumstances?” through developing and testing middle range theories (MRTs). MRTs are programme that outline how certain mechanisms an intervention work a specific context bring about outcomes. In this paper, authors tested initial MRT mechanism participation. The used evidence from participatory organisational five worksites large multi-national organisation US food service industry. Design/methodology/approach Qualitative data 89 process tracking documents 24 post-intervention, semi-structured interviews with stakeholders were analysed using template analysis. Findings operationalised was partial worksite managers’ engagement research team. Six contextual factors (e.g. high workload) impaired participation, one factor (i.e. existing practices) facilitated Worksite participation resulted limited improvement their awareness working conditions can impact on employees’ safety, health, well-being. Based these findings, modified into empirical MRT. Originality/value This paper contributes understanding circumstances” regarding interventions.