Making your research accessible

Why Case Studies are a bridge to influence: A super-quick guide

By 11 February 2013

In this post I look at the power of case studies as a tool for communicating with different audiences and stakeholders.

The humble case study is often overlooked as a powerful tool for analysis even though it very often forms the backbone of many of the working papers, briefs, summaries and reviews that we encounter in our work. Increasingly practitioners and researchers are being asked to develop case studies that support project evaluation or, as in the case of the  Research Excellence Framework 2014 (REF), provide traceable evidence of impact. There are many specific examples of case studies, but at the most basic level, what exactly is the function of a case study?

The answer to that question will be different for every discipline. Case studies may describe a particularly interesting set of circumstances from which lessons can be learned; they may illustrate a particular theory or conceptual framework by reference to a specific example; or they may be used as a device for teaching purposes and publication of findings. In short, they are a dynamic and versatile means of storytelling for different purposes and audiences.

A case study is often a “story of change” or narrative that can be described in terms of an intensive analysis of a single process, person, event, program or project. Crucially, your evidence-rich narrative and analytical storytelling sculpts the overall format of the document, providing a fantastic platform for reaching your chosen audience. This versatility makes a good case study a powerful tool for bridging and influencing.

Evaluation and documentation are essential tools to deploy in any process and this includes development interventions and their underpinning research. Case studies give added value as a format for exploration and clarification to other practitioners. They are also an excellent tool for reflecting on our own practices as they afford both the writer and reader a better understanding of outputs and outcomes, a chance to assess impact, and an opportunity to reflect back on our theories of change (the latter being important for clarifying relationships between theory and practice).

The intended audience often has a major influence on how case studies are written and it is important to understand their needs. As a general rule, case studies should be:

  • Pitched at an appropriate level
  • Contain interesting and relevant information
  • Very concise, incisive and engaging
  • Easy to navigate, digest and extract information from

If we are thinking about informing the public, case studies using everyday language, and using a suitable narrative form, can be a very effective vehicle for describing a process and its outcomes. For audiences closer to our own practice (including stakeholders and funding bodies), a mix of background information, theory, outputs, and reflection on data gathering and actionable results may be the most effective format.

The data and materials chosen for any case study will have a major impact on the type of document written, the amount of “thick description” used in the narrative, and overall presentation (graphics, tables etc). Conversely the type of case study document one intends to write must be appropriate to the processes and methods used in the study or project. Keeping your intended audience in mind is essential for writing an influence footprint into the analysis.

An often overlooked reason for investing time in producing a case study is that they create bridges between researchers by explaining how the strategies, skills and values of people involved in a project influenced what happened. In this way, a case study can help us reach people that may want to collaborate with us, or we want to collaborate with. A well written case study helps disseminate ideas for appropriate research strategies using a mix of documentation from the intervention, outcome data, surveys and qualitative data such as interviews with beneficiaries, and the like. This can lead to many different perspectives being contained within the one document.

As a reflective tool case studies are extremely beneficial for practitioner development given how they deepen our understanding of systems and processes. They also foster historical review and allow us to situate our research and chart developmental changes, often in a multi-contextual way. Finally, case studies inform vibrant scholarly discussion and are a versatile method for communicating research evidence to policy makers and reaching other important end-users of research findings.



  • Dr Helena Korjonen

    Hello James – I see that you mention evidence a few times in this blog post. I find that people are throwing about the word ‘evidence’, often when justifying services and/or implementation of something new, but in actual fact people do not know what evidence is and it is not often defined. We (at the National Heart Forum) are working on untangling what is meant by evidence in public health and in understanding components, and their differences, of evidence, are some ‘better’ than others and what factors affect the component? I would be interested in hearing your thoughts about evidence. We are (soon) posting a short survey about evidence on our website.

  • James H

    Something that is demonstrable, that can be measured, verified, corroborated… you get the idea. In many ways one definition of evidence is as good (or as bad) as another because the proof of the pudding is in the usefulness of the definition. We are always free to search for better definitions as long as what they describe remains the currency that allows us satisfy a burden of proof. Stray too far from that and we may as well be talking about something completely different.

  • rick davies

    If case studies are to be used, and I think they should, then it is critically important that it is made clear how they were selected from among all those that could have been chosen. I have recently posted details of a paper on methods of selecting cases on MandE NEWS